[gnome-shell] (5 commits) Non-fast-forward update to branch wip/carlosg/app-grid-gestures

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/app-grid-gestures' 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:

  a0ca860... calendar-server: Drop "volatile" from g_once_init_enter() s
  3baa62e... hotplug-sniffer: Drop "volatile" from g_once_init_enter() s
  5842354... st/button: Consider touch sequences for ::pressed state
  06a6154... workspacesView: Make swipeTracker mutually exclusive with a
  5906de7... dnd: Add timeoutThreshold setting
  dbab049... grabHelper: Propagate events while this._ignoreUntilRelease
  35b0515... appDisplay: Improve app grid interaction for touch devices

Commits added to the branch:

  8f4db9c... st/button: Consider touch sequences for ::pressed state
  ed89998... workspacesView: Make swipeTracker mutually exclusive with a
  6b22b48... dnd: Add timeoutThreshold setting
  9985db0... grabHelper: Propagate events while this._ignoreUntilRelease
  f3897c1... appDisplay: Improve app grid interaction for touch devices