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**********************************************************************
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* TCPDF LICENSE
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**********************************************************************
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  TCPDF is free software: you can redistribute it and/or modify it
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  under the terms of the GNU Lesser General Public License as
7
  published by the Free Software Foundation, either version 3 of the
8
  License, or (at your option) any later version.
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**********************************************************************
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**********************************************************************
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                   GNU LESSER GENERAL PUBLIC LICENSE
14
                       Version 3, 29 June 2007
15
 
16
 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
17
 Everyone is permitted to copy and distribute verbatim copies
18
 of this license document, but changing it is not allowed.
19
 
20
 
21
  This version of the GNU Lesser General Public License incorporates
22
the terms and conditions of version 3 of the GNU General Public
23
License, supplemented by the additional permissions listed below.
24
 
25
  0. Additional Definitions.
26
 
27
  As used herein, "this License" refers to version 3 of the GNU Lesser
28
General Public License, and the "GNU GPL" refers to version 3 of the GNU
29
General Public License.
30
 
31
  "The Library" refers to a covered work governed by this License,
32
other than an Application or a Combined Work as defined below.
33
 
34
  An "Application" is any work that makes use of an interface provided
35
by the Library, but which is not otherwise based on the Library.
36
Defining a subclass of a class defined by the Library is deemed a mode
37
of using an interface provided by the Library.
38
 
39
  A "Combined Work" is a work produced by combining or linking an
40
Application with the Library.  The particular version of the Library
41
with which the Combined Work was made is also called the "Linked
42
Version".
43
 
44
  The "Minimal Corresponding Source" for a Combined Work means the
45
Corresponding Source for the Combined Work, excluding any source code
46
for portions of the Combined Work that, considered in isolation, are
47
based on the Application, and not on the Linked Version.
48
 
49
  The "Corresponding Application Code" for a Combined Work means the
50
object code and/or source code for the Application, including any data
51
and utility programs needed for reproducing the Combined Work from the
52
Application, but excluding the System Libraries of the Combined Work.
53
 
54
  1. Exception to Section 3 of the GNU GPL.
55
 
56
  You may convey a covered work under sections 3 and 4 of this License
57
without being bound by section 3 of the GNU GPL.
58
 
59
  2. Conveying Modified Versions.
60
 
61
  If you modify a copy of the Library, and, in your modifications, a
62
facility refers to a function or data to be supplied by an Application
63
that uses the facility (other than as an argument passed when the
64
facility is invoked), then you may convey a copy of the modified
65
version:
66
 
67
   a) under this License, provided that you make a good faith effort to
68
   ensure that, in the event an Application does not supply the
69
   function or data, the facility still operates, and performs
70
   whatever part of its purpose remains meaningful, or
71
 
72
   b) under the GNU GPL, with none of the additional permissions of
73
   this License applicable to that copy.
74
 
75
  3. Object Code Incorporating Material from Library Header Files.
76
 
77
  The object code form of an Application may incorporate material from
78
a header file that is part of the Library.  You may convey such object
79
code under terms of your choice, provided that, if the incorporated
80
material is not limited to numerical parameters, data structure
81
layouts and accessors, or small macros, inline functions and templates
82
(ten or fewer lines in length), you do both of the following:
83
 
84
   a) Give prominent notice with each copy of the object code that the
85
   Library is used in it and that the Library and its use are
86
   covered by this License.
87
 
88
   b) Accompany the object code with a copy of the GNU GPL and this license
89
   document.
90
 
91
  4. Combined Works.
92
 
93
  You may convey a Combined Work under terms of your choice that,
94
taken together, effectively do not restrict modification of the
95
portions of the Library contained in the Combined Work and reverse
96
engineering for debugging such modifications, if you also do each of
97
the following:
98
 
99
   a) Give prominent notice with each copy of the Combined Work that
100
   the Library is used in it and that the Library and its use are
101
   covered by this License.
102
 
103
   b) Accompany the Combined Work with a copy of the GNU GPL and this license
104
   document.
105
 
106
   c) For a Combined Work that displays copyright notices during
107
   execution, include the copyright notice for the Library among
108
   these notices, as well as a reference directing the user to the
109
   copies of the GNU GPL and this license document.
110
 
111
   d) Do one of the following:
112
 
113
       0) Convey the Minimal Corresponding Source under the terms of this
114
       License, and the Corresponding Application Code in a form
115
       suitable for, and under terms that permit, the user to
116
       recombine or relink the Application with a modified version of
117
       the Linked Version to produce a modified Combined Work, in the
118
       manner specified by section 6 of the GNU GPL for conveying
119
       Corresponding Source.
120
 
121
       1) Use a suitable shared library mechanism for linking with the
122
       Library.  A suitable mechanism is one that (a) uses at run time
123
       a copy of the Library already present on the user's computer
124
       system, and (b) will operate properly with a modified version
125
       of the Library that is interface-compatible with the Linked
126
       Version.
127
 
128
   e) Provide Installation Information, but only if you would otherwise
129
   be required to provide such information under section 6 of the
130
   GNU GPL, and only to the extent that such information is
131
   necessary to install and execute a modified version of the
132
   Combined Work produced by recombining or relinking the
133
   Application with a modified version of the Linked Version. (If
134
   you use option 4d0, the Installation Information must accompany
135
   the Minimal Corresponding Source and Corresponding Application
136
   Code. If you use option 4d1, you must provide the Installation
137
   Information in the manner specified by section 6 of the GNU GPL
138
   for conveying Corresponding Source.)
139
 
140
  5. Combined Libraries.
141
 
142
  You may place library facilities that are a work based on the
143
Library side by side in a single library together with other library
144
facilities that are not Applications and are not covered by this
145
License, and convey such a combined library under terms of your
146
choice, if you do both of the following:
147
 
148
   a) Accompany the combined library with a copy of the same work based
149
   on the Library, uncombined with any other library facilities,
150
   conveyed under the terms of this License.
151
 
152
   b) Give prominent notice with the combined library that part of it
153
   is a work based on the Library, and explaining where to find the
154
   accompanying uncombined form of the same work.
155
 
156
  6. Revised Versions of the GNU Lesser General Public License.
157
 
158
  The Free Software Foundation may publish revised and/or new versions
159
of the GNU Lesser General Public License from time to time. Such new
160
versions will be similar in spirit to the present version, but may
161
differ in detail to address new problems or concerns.
162
 
163
  Each version is given a distinguishing version number. If the
164
Library as you received it specifies that a certain numbered version
165
of the GNU Lesser General Public License "or any later version"
166
applies to it, you have the option of following the terms and
167
conditions either of that published version or of any later version
168
published by the Free Software Foundation. If the Library as you
169
received it does not specify a version number of the GNU Lesser
170
General Public License, you may choose any version of the GNU Lesser
171
General Public License ever published by the Free Software Foundation.
172
 
173
  If the Library as you received it specifies that a proxy can decide
174
whether future versions of the GNU Lesser General Public License shall
175
apply, that proxy's public statement of acceptance of any version is
176
permanent authorization for you to choose that version for the
177
Library.
178
 
179
**********************************************************************
180
**********************************************************************
181
 
182
                    GNU GENERAL PUBLIC LICENSE
183
                       Version 3, 29 June 2007
184
 
185
 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
186
 Everyone is permitted to copy and distribute verbatim copies
187
 of this license document, but changing it is not allowed.
188
 
189
                            Preamble
190
 
191
  The GNU General Public License is a free, copyleft license for
192
software and other kinds of works.
193
 
194
  The licenses for most software and other practical works are designed
195
to take away your freedom to share and change the works.  By contrast,
196
the GNU General Public License is intended to guarantee your freedom to
197
share and change all versions of a program--to make sure it remains free
198
software for all its users.  We, the Free Software Foundation, use the
199
GNU General Public License for most of our software; it applies also to
200
any other work released this way by its authors.  You can apply it to
201
your programs, too.
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203
  When we speak of free software, we are referring to freedom, not
204
price.  Our General Public Licenses are designed to make sure that you
205
have the freedom to distribute copies of free software (and charge for
206
them if you wish), that you receive source code or can get it if you
207
want it, that you can change the software or use pieces of it in new
208
free programs, and that you know you can do these things.
209
 
210
  To protect your rights, we need to prevent others from denying you
211
these rights or asking you to surrender the rights.  Therefore, you have
212
certain responsibilities if you distribute copies of the software, or if
213
you modify it: responsibilities to respect the freedom of others.
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215
  For example, if you distribute copies of such a program, whether
216
gratis or for a fee, you must pass on to the recipients the same
217
freedoms that you received.  You must make sure that they, too, receive
218
or can get the source code.  And you must show them these terms so they
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know their rights.
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  Developers that use the GNU GPL protect your rights with two steps:
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(1) assert copyright on the software, and (2) offer you this License
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giving you legal permission to copy, distribute and/or modify it.
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  For the developers' and authors' protection, the GPL clearly explains
226
that there is no warranty for this free software.  For both users' and
227
authors' sake, the GPL requires that modified versions be marked as
228
changed, so that their problems will not be attributed erroneously to
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authors of previous versions.
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  Some devices are designed to deny users access to install or run
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modified versions of the software inside them, although the manufacturer
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can do so.  This is fundamentally incompatible with the aim of
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protecting users' freedom to change the software.  The systematic
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pattern of such abuse occurs in the area of products for individuals to
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use, which is precisely where it is most unacceptable.  Therefore, we
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have designed this version of the GPL to prohibit the practice for those
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products.  If such problems arise substantially in other domains, we
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stand ready to extend this provision to those domains in future versions
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of the GPL, as needed to protect the freedom of users.
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242
  Finally, every program is threatened constantly by software patents.
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States should not allow patents to restrict development and use of
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software on general-purpose computers, but in those that do, we wish to
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avoid the special danger that patents applied to a free program could
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make it effectively proprietary.  To prevent this, the GPL assures that
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patents cannot be used to render the program non-free.
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249
  The precise terms and conditions for copying, distribution and
250
modification follow.
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252
                       TERMS AND CONDITIONS
253
 
254
  0. Definitions.
255
 
256
  "This License" refers to version 3 of the GNU General Public License.
257
 
258
  "Copyright" also means copyright-like laws that apply to other kinds of
259
works, such as semiconductor masks.
260
 
261
  "The Program" refers to any copyrightable work licensed under this
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License.  Each licensee is addressed as "you".  "Licensees" and
263
"recipients" may be individuals or organizations.
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265
  To "modify" a work means to copy from or adapt all or part of the work
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exact copy.  The resulting work is called a "modified version" of the
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  A "covered work" means either the unmodified Program or a work based
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  To "propagate" a work means to do anything with it that, without
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infringement under applicable copyright law, except executing it on a
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  An interactive user interface displays "Appropriate Legal Notices"
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to the extent that it includes a convenient and prominently visible
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feature that (1) displays an appropriate copyright notice, and (2)
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tells the user that there is no warranty for the work (except to the
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  1. Source Code.
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  The "source code" for a work means the preferred form of the work
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  The "System Libraries" of an executable work include anything, other
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403
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    d) If the work has interactive user interfaces, each must display
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456
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478
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  Corresponding Source conveyed, and Installation Information provided,
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524
  7. Additional Terms.
525
 
526
  "Additional permissions" are terms that supplement the terms of this
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528
Additional permissions that are applicable to the entire Program shall
529
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535
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541
 
542
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552
 
553
    c) Prohibiting misrepresentation of the origin of that material, or
554
    requiring that modified versions of such material be marked in
555
    reasonable ways as different from the original version; or
556
 
557
    d) Limiting the use for publicity purposes of names of licensors or
558
    authors of the material; or
559
 
560
    e) Declining to grant rights under trademark law for use of some
561
    trade names, trademarks, or service marks; or
562
 
563
    f) Requiring indemnification of licensors and authors of that
564
    material by anyone who conveys the material (or modified versions of
565
    it) with contractual assumptions of liability to the recipient, for
566
    any liability that these contractual assumptions directly impose on
567
    those licensors and authors.
568
 
569
  All other non-permissive additional terms are considered "further
570
restrictions" within the meaning of section 10.  If the Program as you
571
received it, or any part of it, contains a notice stating that it is
572
governed by this License along with a term that is a further
573
restriction, you may remove that term.  If a license document contains
574
a further restriction but permits relicensing or conveying under this
575
License, you may add to a covered work material governed by the terms
576
of that license document, provided that the further restriction does
577
not survive such relicensing or conveying.
578
 
579
  If you add terms to a covered work in accord with this section, you
580
must place, in the relevant source files, a statement of the
581
additional terms that apply to those files, or a notice indicating
582
where to find the applicable terms.
583
 
584
  Additional terms, permissive or non-permissive, may be stated in the
585
form of a separately written license, or stated as exceptions;
586
the above requirements apply either way.
587
 
588
  8. Termination.
589
 
590
  You may not propagate or modify a covered work except as expressly
591
provided under this License.  Any attempt otherwise to propagate or
592
modify it is void, and will automatically terminate your rights under
593
this License (including any patent licenses granted under the third
594
paragraph of section 11).
595
 
596
  However, if you cease all violation of this License, then your
597
license from a particular copyright holder is reinstated (a)
598
provisionally, unless and until the copyright holder explicitly and
599
finally terminates your license, and (b) permanently, if the copyright
600
holder fails to notify you of the violation by some reasonable means
601
prior to 60 days after the cessation.
602
 
603
  Moreover, your license from a particular copyright holder is
604
reinstated permanently if the copyright holder notifies you of the
605
violation by some reasonable means, this is the first time you have
606
received notice of violation of this License (for any work) from that
607
copyright holder, and you cure the violation prior to 30 days after
608
your receipt of the notice.
609
 
610
  Termination of your rights under this section does not terminate the
611
licenses of parties who have received copies or rights from you under
612
this License.  If your rights have been terminated and not permanently
613
reinstated, you do not qualify to receive new licenses for the same
614
material under section 10.
615
 
616
  9. Acceptance Not Required for Having Copies.
617
 
618
  You are not required to accept this License in order to receive or
619
run a copy of the Program.  Ancillary propagation of a covered work
620
occurring solely as a consequence of using peer-to-peer transmission
621
to receive a copy likewise does not require acceptance.  However,
622
nothing other than this License grants you permission to propagate or
623
modify any covered work.  These actions infringe copyright if you do
624
not accept this License.  Therefore, by modifying or propagating a
625
covered work, you indicate your acceptance of this License to do so.
626
 
627
  10. Automatic Licensing of Downstream Recipients.
628
 
629
  Each time you convey a covered work, the recipient automatically
630
receives a license from the original licensors, to run, modify and
631
propagate that work, subject to this License.  You are not responsible
632
for enforcing compliance by third parties with this License.
633
 
634
  An "entity transaction" is a transaction transferring control of an
635
organization, or substantially all assets of one, or subdividing an
636
organization, or merging organizations.  If propagation of a covered
637
work results from an entity transaction, each party to that
638
transaction who receives a copy of the work also receives whatever
639
licenses to the work the party's predecessor in interest had or could
640
give under the previous paragraph, plus a right to possession of the
641
Corresponding Source of the work from the predecessor in interest, if
642
the predecessor has it or can get it with reasonable efforts.
643
 
644
  You may not impose any further restrictions on the exercise of the
645
rights granted or affirmed under this License.  For example, you may
646
not impose a license fee, royalty, or other charge for exercise of
647
rights granted under this License, and you may not initiate litigation
648
(including a cross-claim or counterclaim in a lawsuit) alleging that
649
any patent claim is infringed by making, using, selling, offering for
650
sale, or importing the Program or any portion of it.
651
 
652
  11. Patents.
653
 
654
  A "contributor" is a copyright holder who authorizes use under this
655
License of the Program or a work on which the Program is based.  The
656
work thus licensed is called the contributor's "contributor version".
657
 
658
  A contributor's "essential patent claims" are all patent claims
659
owned or controlled by the contributor, whether already acquired or
660
hereafter acquired, that would be infringed by some manner, permitted
661
by this License, of making, using, or selling its contributor version,
662
but do not include claims that would be infringed only as a
663
consequence of further modification of the contributor version.  For
664
purposes of this definition, "control" includes the right to grant
665
patent sublicenses in a manner consistent with the requirements of
666
this License.
667
 
668
  Each contributor grants you a non-exclusive, worldwide, royalty-free
669
patent license under the contributor's essential patent claims, to
670
make, use, sell, offer for sale, import and otherwise run, modify and
671
propagate the contents of its contributor version.
672
 
673
  In the following three paragraphs, a "patent license" is any express
674
agreement or commitment, however denominated, not to enforce a patent
675
(such as an express permission to practice a patent or covenant not to
676
sue for patent infringement).  To "grant" such a patent license to a
677
party means to make such an agreement or commitment not to enforce a
678
patent against the party.
679
 
680
  If you convey a covered work, knowingly relying on a patent license,
681
and the Corresponding Source of the work is not available for anyone
682
to copy, free of charge and under the terms of this License, through a
683
publicly available network server or other readily accessible means,
684
then you must either (1) cause the Corresponding Source to be so
685
available, or (2) arrange to deprive yourself of the benefit of the
686
patent license for this particular work, or (3) arrange, in a manner
687
consistent with the requirements of this License, to extend the patent
688
license to downstream recipients.  "Knowingly relying" means you have
689
actual knowledge that, but for the patent license, your conveying the
690
covered work in a country, or your recipient's use of the covered work
691
in a country, would infringe one or more identifiable patents in that
692
country that you have reason to believe are valid.
693
 
694
  If, pursuant to or in connection with a single transaction or
695
arrangement, you convey, or propagate by procuring conveyance of, a
696
covered work, and grant a patent license to some of the parties
697
receiving the covered work authorizing them to use, propagate, modify
698
or convey a specific copy of the covered work, then the patent license
699
you grant is automatically extended to all recipients of the covered
700
work and works based on it.
701
 
702
  A patent license is "discriminatory" if it does not include within
703
the scope of its coverage, prohibits the exercise of, or is
704
conditioned on the non-exercise of one or more of the rights that are
705
specifically granted under this License.  You may not convey a covered
706
work if you are a party to an arrangement with a third party that is
707
in the business of distributing software, under which you make payment
708
to the third party based on the extent of your activity of conveying
709
the work, and under which the third party grants, to any of the
710
parties who would receive the covered work from you, a discriminatory
711
patent license (a) in connection with copies of the covered work
712
conveyed by you (or copies made from those copies), or (b) primarily
713
for and in connection with specific products or compilations that
714
contain the covered work, unless you entered into that arrangement,
715
or that patent license was granted, prior to 28 March 2007.
716
 
717
  Nothing in this License shall be construed as excluding or limiting
718
any implied license or other defenses to infringement that may
719
otherwise be available to you under applicable patent law.
720
 
721
  12. No Surrender of Others' Freedom.
722
 
723
  If conditions are imposed on you (whether by court order, agreement or
724
otherwise) that contradict the conditions of this License, they do not
725
excuse you from the conditions of this License.  If you cannot convey a
726
covered work so as to satisfy simultaneously your obligations under this
727
License and any other pertinent obligations, then as a consequence you may
728
not convey it at all.  For example, if you agree to terms that obligate you
729
to collect a royalty for further conveying from those to whom you convey
730
the Program, the only way you could satisfy both those terms and this
731
License would be to refrain entirely from conveying the Program.
732
 
733
  13. Use with the GNU Affero General Public License.
734
 
735
  Notwithstanding any other provision of this License, you have
736
permission to link or combine any covered work with a work licensed
737
under version 3 of the GNU Affero General Public License into a single
738
combined work, and to convey the resulting work.  The terms of this
739
License will continue to apply to the part which is the covered work,
740
but the special requirements of the GNU Affero General Public License,
741
section 13, concerning interaction through a network will apply to the
742
combination as such.
743
 
744
  14. Revised Versions of this License.
745
 
746
  The Free Software Foundation may publish revised and/or new versions of
747
the GNU General Public License from time to time.  Such new versions will
748
be similar in spirit to the present version, but may differ in detail to
749
address new problems or concerns.
750
 
751
  Each version is given a distinguishing version number.  If the
752
Program specifies that a certain numbered version of the GNU General
753
Public License "or any later version" applies to it, you have the
754
option of following the terms and conditions either of that numbered
755
version or of any later version published by the Free Software
756
Foundation.  If the Program does not specify a version number of the
757
GNU General Public License, you may choose any version ever published
758
by the Free Software Foundation.
759
 
760
  If the Program specifies that a proxy can decide which future
761
versions of the GNU General Public License can be used, that proxy's
762
public statement of acceptance of a version permanently authorizes you
763
to choose that version for the Program.
764
 
765
  Later license versions may give you additional or different
766
permissions.  However, no additional obligations are imposed on any
767
author or copyright holder as a result of your choosing to follow a
768
later version.
769
 
770
  15. Disclaimer of Warranty.
771
 
772
  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
773
APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
774
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
775
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
776
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
777
PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
778
IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
779
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
780
 
781
  16. Limitation of Liability.
782
 
783
  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
784
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
785
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
786
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
787
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
788
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
789
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
790
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
791
SUCH DAMAGES.
792
 
793
  17. Interpretation of Sections 15 and 16.
794
 
795
  If the disclaimer of warranty and limitation of liability provided
796
above cannot be given local legal effect according to their terms,
797
reviewing courts shall apply local law that most closely approximates
798
an absolute waiver of all civil liability in connection with the
799
Program, unless a warranty or assumption of liability accompanies a
800
copy of the Program in return for a fee.
801
 
802
                     END OF TERMS AND CONDITIONS
803
 
804
            How to Apply These Terms to Your New Programs
805
 
806
  If you develop a new program, and you want it to be of the greatest
807
possible use to the public, the best way to achieve this is to make it
808
free software which everyone can redistribute and change under these terms.
809
 
810
  To do so, attach the following notices to the program.  It is safest
811
to attach them to the start of each source file to most effectively
812
state the exclusion of warranty; and each file should have at least
813
the "copyright" line and a pointer to where the full notice is found.
814
 
815
    <one line to give the program's name and a brief idea of what it does.>
816
    Copyright (C) <year>  <name of author>
817
 
818
    This program is free software: you can redistribute it and/or modify
819
    it under the terms of the GNU General Public License as published by
820
    the Free Software Foundation, either version 3 of the License, or
821
    (at your option) any later version.
822
 
823
    This program is distributed in the hope that it will be useful,
824
    but WITHOUT ANY WARRANTY; without even the implied warranty of
825
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
826
    GNU General Public License for more details.
827
 
828
    You should have received a copy of the GNU General Public License
829
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
830
 
831
Also add information on how to contact you by electronic and paper mail.
832
 
833
  If the program does terminal interaction, make it output a short
834
notice like this when it starts in an interactive mode:
835
 
836
    <program>  Copyright (C) <year>  <name of author>
837
    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
838
    This is free software, and you are welcome to redistribute it
839
    under certain conditions; type `show c' for details.
840
 
841
The hypothetical commands `show w' and `show c' should show the appropriate
842
parts of the General Public License.  Of course, your program's commands
843
might be different; for a GUI interface, you would use an "about box".
844
 
845
  You should also get your employer (if you work as a programmer) or school,
846
if any, to sign a "copyright disclaimer" for the program, if necessary.
847
For more information on this, and how to apply and follow the GNU GPL, see
848
<http://www.gnu.org/licenses/>.
849
 
850
  The GNU General Public License does not permit incorporating your program
851
into proprietary programs.  If your program is a subroutine library, you
852
may consider it more useful to permit linking proprietary applications with
853
the library.  If this is what you want to do, use the GNU Lesser General
854
Public License instead of this License.  But first, please read
855
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
856
 
857
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858
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