GIL 2.0 to 2.1 (see http://opensource.adobe.com/gil/gil2.1_changes.pdf). GIL 2.1 to 2.1.1 (see http://sourceforge.net/forum/forum.php?thread_id=1824588&forum_id=648138)

[SVN r39339]

libs/gil

@@ -1 +1 @@
-Subproject commit 6ba113bbb4d4ef19b6d9ef7d6dd37cc0c8b1d535
+Subproject commit 2ad6747dd0472cef7c67b3438b847f347ce45212