[gnome-calendar] (4 commits) Non-fast-forward update to branch wip/gbsneto/month-cell-subwindow

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

The branch 'wip/gbsneto/month-cell-subwindow' 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:

  6ad701a... month-view: fight the sizing machinery even harder

Commits added to the branch:

  b4cc36b... month-view: fight the sizing machinery even harder
  8d6785b... month-view: implement a different hiding algorithm
  eff5066... month-view: introduce new overflow popover window
  72b9b34... month-view: win the fight against the sizing machinery