[gnome-shell] (4 commits) Non-fast-forward update to branch wip/mcrha/issue1875

[Florian Müllner <fmuellner src gnome org>]

The branch 'wip/mcrha/issue1875' 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:

  2c2952f... calendar: Update events on changes
  a272a2b... calendar: Do less work in hasEvents()
  2ea3cb9... calendar-server: Improve performance by properly using ECal

Commits added to the branch:

  167bc08... appDisplay: Reorganize AppDisplay actor hierarchy (*)
  118aef7... calendar: Update events on changes
  4ad866e... calendar: Do less work in hasEvents()
  73f97e3... calendar-server: Improve performance by properly using ECal

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