[epiphany] (5 commits) Non-fast-forward update to branch mcatanzaro/#1014

[Jan-Michael Brummer <jbrummer src gnome org>]

The branch 'mcatanzaro/#1014' 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:

  27ce4a3... web-process-extension: store frame IDs as pointers

Commits added to the branch:

  c7017b2... Remove about:plugins leftovers (*)
  a6d4699... Disable PSON to avoid crashes (*)
  d87110a... action-bar-start: fix return values throughout (*)
  e53ecf9... action-bar-start: remove redundant menu popup (*)
  1751ea0... web-process-extension: store frame IDs as pointers

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