[gnome-software] (11 commits) Non-fast-forward update to branch wip/rancell/ubuntu-3-20-rebase

[Robert Ancell <rancell src gnome org>]

The branch 'wip/rancell/ubuntu-3-20-rebase' 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:

  afdc390... Add an APT plugin
  7ffac48... Add a Snap plugin
  ed52f6f... Remove nonfree tag on search results
  706ca75... Allow logging into Ubuntu One for reviews
  54390f6... Do not use the header bar on Unity
  8e2782b... Fix launching various KDE4 applications

Commits added to the branch:

  ba10980... gs-app: Make subsume copy over more things
  2bdf4c9... Memory leak fix
  ca4f2d6... Add an APT plugin
  6bfb97f... Add a Snap plugin
  9a79a6b... Remove nonfree tag on search results
  4a4d6be... Allow logging into Ubuntu One for reviews
  0761340... Do not use the header bar on Unity
  9eef43f... Fix launching various KDE4 applications
  cffc58e... Define AS_APP_QUIRK_NEEDS_REBOOT if not available
  8aca086... Add an unreviewable application quirk
  5982e82... Use AS_APP_QUIRK_NOT_LAUNCHABLE to control the Launch butto