0.12.7dev: added step to compile catalogs in travis-ci


git-svn-id: http://trac.edgewall.org/intertrac/log:/branches/0.12-stable@13279 af82e41b-90c4-0310-8c96-b1721e28e2e2
1.0.3dev: merged [13279] from 0.12-stable (travis-ci)


git-svn-id: http://trac.edgewall.org/intertrac/log:/branches/1.0-stable@13280 af82e41b-90c4-0310-8c96-b1721e28e2e2