[gnome-software] (12 commits) Created branch wip/kalev/codecs

[Kalev Lember <klember src gnome org>]

The branch 'wip/kalev/codecs' was created.

Summary of new commits:

  669391e... Don't include gs-cleanup.h from other .h files
  788f864... Define a cleanup function for gs_plugin_list_free
  1050753... dbus helper: Port to gdbus-codegen generated helper
  7d80ea5... Factor out gs_app_show_url
  aa2f1ee... Add a common base class that all shell pages derive from
  f55ef12... trivial: app row: Remove a redundant condition
  34bfd07... app row: Don't show ratings for local and missing apps
  772da66... app row: Don't escape missing description
  1f91356... plugin loader: Re-refine apps after install / remove
  14aa194... GsApp: move local package icon loading here
  d4a02f8... Add a new Extras page for displaying PK session service res
  24c4a16... PK session service: Add a new version of the Modify interfa