build: install GTK+2 in travis
commit3c574d9f957e52b274463e36be7ee1d291f6f0cc
authorNicola Fontana <ntd@entidi.it>
Thu, 26 Feb 2015 19:54:28 +0000 (26 20:54 +0100)
committerNicola Fontana <ntd@entidi.it>
Thu, 26 Feb 2015 19:54:30 +0000 (26 20:54 +0100)
treed9c4cc379e5a4e6a608705c5bb4e3ebefee0208b
parentdeb2720d314f91783367387d1dc93aea07573734
build: install GTK+2 in travis

By installing GTK+2, all GTK+ dependent tests are enabled also on
TravisCI.
.travis.yml