[gnome-software] (8 commits) Non-fast-forward update to branch wip/hughsie/flatpak

[Richard Hughes <rhughes src gnome org>]

The branch 'wip/hughsie/flatpak' 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:

  84ed5a5... Add a flatpak plugin
  bf1168f... trivial: Remove some dead #ifdefs
  6282c6a... Add support for flatpak self tests
  d052793... f
  b5a1fd4... f
  af2272a... f
  e4db5ef... Manually drop the cache when getting updates

Commits added to the branch:

  528fbd3... Fix crash due to network change before app activation (*)
  9cfe30d... trivial: Fix underlinking in the packagekit-origin plugin (*)
  0e9d470... Add gs_plugin_add_source() vfunc (*)
  4a8841f... trivial: Allow setting the AsStore icon root in self tests
  7d4cfa8... trivial: Set the management plugin and source for all bundl
  7ce1c48... Add a flatpak plugin
  7a56d24... trivial: Remove some dead #ifdefs
  0950275... trivial: Switch the example spec file to use flatpak by def

(*) This commit already existed in another branch; no separate mail sent