[gnome-tour] (3 commits) Non-fast-forward update to branch wip/exalm/ui-cleanups

[Alexander Mikhaylenko <alexm src gnome org>]

The branch 'wip/exalm/ui-cleanups' 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:

  5ee706c... paginator: Clean up headerbar buttons
  780454e... paginator: Switch page in the middle of the transition and 
  8c621c5... Clean up buttons

Commits added to the branch:

  cb10897... paginator: Clean up headerbar buttons
  9d33588... paginator: Switch page in the middle of the transition and 
  aca427a... Clean up buttons