geoserver/geoserver — pull request #649 by dromagnoli (2014-07-16 13:04:35+00:00)
Title: GEOS-4834: Animated GIF do not properly support transparency

this is actually the patch from Simone Giannecchini, with one little
fix in RenderedImageMapResponse to make it work (again).
see: https://jira.codehaus.org/browse/GEOS-4834
adding transparency tests for animated gif