Somewhat ugly hack to fix #1977. Also, don't show ''milestone'' as available for grouping in the milestone stats.
Somewhat ugly hack to fix #1977. Also, don't show ''milestone'' as available for grouping in the milestone stats.

git-svn-id: f68c6b3b1dcd5d00a2560c384475aaef3bc99487@2131 af82e41b-90c4-0310-8c96-b1721e28e2e2

dokipen/trac,moreati/trac-gitsvn,dafrito/trac-mirror,moreati/trac-gitsvn,dafrito/trac-mirror,dafrito/trac-mirror,moreati/trac-gitsvn,dokipen/trac,exocad/exotrac,exocad/exotrac,dafrito/trac-mirror,dokipen/trac,exocad/exotrac,moreati/trac-gitsvn,exocad/exotrac