[gnome-software] (13 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:

  3ced197... Use AS_APP_QUIRK_NOT_LAUNCHABLE to control the Launch butto
  7bbb90b... Fix a couple of CSS errors
  26ad3bb... app folder dialog: Make the dialog work again
  8f34188... trivial: Allow arbitrary variables to be read from /etc/os-
  dc0e1c5... Backport URL handling improvements from master
  4ae59c3... Allow logging into Ubuntu One for reviews
  bb99196... Add an APT plugin
  cee963f... Add a Snap plugin
  9a28ab4... Use minimal limits for review content

Commits added to the branch:

  9ec2765... Make review text selectable
  1ea1d2c... Use AS_APP_QUIRK_NOT_LAUNCHABLE to control the Launch butto
  5b74ecc... Fix a couple of CSS errors
  293b28c... trivial: Send notification only once
  f1c723c... app folder dialog: Make the dialog work again
  b94a238... trivial: Allow arbitrary variables to be read from /etc/os-
  b4b65d9... Backport URL handling improvements from master
  cd9c456... Allow logging into Ubuntu One for reviews
  9e0a693... Add an APT plugin
  dac7070... Add a Snap plugin
  ea4a170... Use minimal limits for review content
  150160d... Format update descriptions to be suitable for Ubuntu.
  9d81e7a... Don't use notification actions under Unity