Use dconf functions from libmate-desktop
Use common GSettings function from libmate-desktop
GTK3 fix
Use about dialog from libmate-desktop
Sync translations with transifex
Remove autogenerated files
Sync translations with transifex
gtk3: fix run application dialog
Merge remote-tracking branch 'upstream/master'

Conflicts:
	mate-panel/panel-run-dialog.c
Merge branch 'master' into dev