[gegl] Document the inclusion of Poly2Tri-C (Using the New-BSD license) in GEGL

[Michael Natterer <mitch src gnome org>]

commit b8a3617943c92adce5b720f4ebd32e31bef9cc62
Author: Barak Itkin <lightningismyname gmail com>
Date:   Sat Aug 11 22:18:46 2012 +0300

    Document the inclusion of Poly2Tri-C (Using the New-BSD license) in GEGL

 docs/copyright.txt.in |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/docs/copyright.txt.in b/docs/copyright.txt.in
index bf3c8bc..c2a056e 100644
--- a/docs/copyright.txt.in
+++ b/docs/copyright.txt.in
@@ -6,6 +6,9 @@ Public License] as published by the Free Software Foundation; either version 3
 of the Licenses, or (at your option) any later version. The library itself is
 licensed under LGPL while the sample commandline application and GUI binary
 gegl is licensed under GPL.
+GEGL depends on and ships with the link:http://code.google.com/p/poly2tri-c[Poly2Tri-C]
+library, which is also free software; you can redistribute it and/or modify it
+under the terms of the link:NEW-BSD[New BSD License].
 
 Contributors
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