0.12dev: ported [7594] from 0.11-stable ''(add_warning with Genshi msg, #7474)''
0.12dev: ported [7594] from 0.11-stable ''(add_warning with Genshi msg, #7474)''

git-svn-id: f68c6b3b1dcd5d00a2560c384475aaef3bc99487@7596 af82e41b-90c4-0310-8c96-b1721e28e2e2

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