[gnome-panel] (4 commits) Non-fast-forward update to branch wip/segeiger/reference-documentation

[Sebastian Geiger <segeiger src gnome org>]

The branch 'wip/segeiger/reference-documentation' 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:

  adc644b... libpanel-applet: add link to PanelAppletFactoryCallback for
  c75cd00... libpanel-applet/panel-applet.h: Rename id to factory_id for
  64f23c2... doc: Improve reference documentation
  6e3909a... doc: Properly remove gtk-doc files on clean

Commits added to the branch:

  ead11bd... libpanel-applet: add link to PanelAppletFactoryCallback for
  cce7650... libpanel-applet/panel-applet.h: Rename id to factory_id for
  9cccace... doc: Improve reference documentation
  2d5c27d... doc: Properly remove gtk-doc files on clean