[gnome-shell] (24 commits) Created branch wip/message-tray

[Debarshi Ray <debarshir src gnome org>]

The branch 'wip/message-tray' was created.

Summary of new commits:

  ff5e836... messageTray: Clone, clip & move the window_group when tray 
  ba9db62... messageTray: restyle the message tray
  af4d004... theme: Use the proper syntax for background-repeat
  e0c35c4... theme: Update theme
  6309e86... messageTray: Clean up code
  eac5945... messageTray: Use the standard :hover pseudo-class
  6a93ab3... messageTray: don't time out banners when the user is inacti
  5f1837c... messageTray: don't show the tray after new items are added
  e224381... message-tray: Add :overview pseudo class when in overview
  1b435d8... theme: Update message-tray style in the overview
  6efe34a... theme: Make the noise texture fancier
  61f244c... st-scroll-bar: use clutter_grab_pointer()
  93a893b... Introduce a new GrabHelper
  2808f02... popupMenu: Port to GrabHelper
  6626206... messageTray: Port to GrabHelper
  f80f67f... messageTray: Make modal
  ba6954c... messageTray: Properly track notificationExpanded
  b86201a... messageTray: Make the hot corner summon the tray
  685bffb... messageTray: Don't hide the tray when we have a message inc
  621f43c... messageTray: Make it keyboard navigable in the overview
  abcfed0... messageTray: Correct idleness
  c427d1f... messageTray: Use a Lightbox to shade the window_group
  1da4dff... messageTray: Set can_focus to true for SummaryItem
  aeddec2... theme: Add a new style for .summary-source-button:focus