[glib] (3 commits) Non-fast-forward update to branch ebassi/source-once

[Philip Withnall <pwithnall src gnome org>]

The branch 'ebassi/source-once' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  ced85d7... Add one-shot idle and timeout functions
  5c61d42... Port various timeout/idle callbacks to the once API
  3ffbca9... Add new symbols to the API reference

Commits added to the branch:

  12571a0... Add one-shot idle and timeout functions
  50c316e... Port various timeout/idle callbacks to the once API
  c1f94cd... gmain: Minor documentation updates to idle-once and timeout