[file-roller] (3 commits) Non-fast-forward update to branch wip/jtojnar/7zip

[Jan Tojnar <jtojnar src gnome org>]

The branch 'wip/jtojnar/7zip' 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:

  f5e805f... Add support for the official 7-Zip project
  54ee677... wip: Try to debug rar support

Commits added to the branch:

  65fa71a... command-7z: Fix RAR support detection with p7zip ≥ 15.07
  65e9cfc... command-7z: Add support for the official 7-Zip project
  d6016a0... wip: Try to debug rar support