[gitg] (7 commits) Non-fast-forward update to branch xiaoguang/split-view

[Alberto Fanjul <albfan src gnome org>]

The branch 'xiaoguang/split-view' 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:

  49f91d1... diff-view: Add split view function
  926a3d2... change button for view to radio button
  5f231fc... Hide split view when does not makes sense

Commits added to the branch:

  f6ac911... Update Italian translation (*)
  fd407a4... commit-dialog: Allow copying the file names Fixes #226 (*)
  bdba5b7... Update GtkSourceView dependency (*)
  4f7d985... Support repository being null (*)
  5d2a77b... diff-view: Add split view function
  0a6b415... change button for view to radio button
  6118fce... Hide split view when does not makes sense

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