[gnome-documents] (6 commits) Non-fast-forward update to branch wip/gepub

[Cosimo Cecchi <cosimoc src gnome org>]

The branch 'wip/gepub' 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:

  f8222ac... Rewrite implementation of GActions
  c9b98cc... preview: factor out a common class for preview toolbars
  c2996dc... preview: use a common method to create the preview context 
  0626f4e... preview: trivial code cleanups
  22c66bc... evince: make Present a stateless action
  1f20ed0... evince: simplify code

Commits added to the branch:

  b2c6598... Rewrite implementation of GActions
  659f00b... preview: factor out a common class for preview toolbars
  e721c34... preview: use a common method to create the preview context 
  e4e556e... preview: trivial code cleanups
  cd24b98... evince: make Present a stateless action
  b18ab39... evince: simplify code