Merge branch 'dbus-queue' into 'master'

lib: Add GtDBusQueue for creating mock D-Bus services

See merge request !4
4 jobs for master in 14 minutes and 22 seconds
Status Job ID Name Coverage
  Build
passed #169908
build-job

00:04:15

 
  Test
passed #169909
test

00:06:17

63.8%
 
  Deploy
passed #169910
pages

00:03:49

passed pages:deploy

00:00:00