Enable broadcasting gl_FragColor to all draw buffer color attachments in ES2 contexts. TRAC #22888 Signed-off-by: Nicolas Capens Signed-off-by: Shannon Woods Author: Jamie Madill Conflicts: src/libGLESv2/ProgramBinary.cpp git-svn-id: https://angleproject.googlecode.com/svn/branches/es3proto@2157 736b8ea6-26fd-11df-bfd4-992fa37f6226