Convert all ebuilds that need vala to use vala.eclass and tidy up vala versioning so that we can use vala-0.20 wherever possible (ref. bgo #463720)
Bring back 'gtk' and 'introspection' USE flags for libdbusmenu. Even if we do force the options they're still needed to be seen as options for other main tree ebuilds. Tidy up dev-libs/libindicate[gtk,introspection] depends
2nd round of gnome-3.8 ebuilds
Merge remote-tracking branch 'shiznix/master'