[gnome-shell] (18 commits) Created branch wip/message-tray

[Debarshi Ray <debarshir src gnome org>]

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

Summary of new commits:

  260b18b... messageTray: Add a toggle-message-tray keybinding to toggle
  35e4b37... messageTray: Clone, clip & move the window_group when tray 
  4a821bb... messageTray: restyle the message tray
  fe904de... theme: Use the proper syntax for background-repeat
  1b727ed... theme: Update theme
  95b809e... messageTray: Clean up code
  9b0568f... messageTray: Use the standard :hover pseudo-class
  dfbbe1a... messageTray: don't time out banners when the user is inacti
  a3ae23c... messageTray: don't show the tray after new items are added
  af12d03... message-tray: Add :overview pseudo class when in overview
  08ebaab... theme: Update message-tray style in the overview
  829cd18... theme: Make the noise texture fancier
  160abcb... st-scroll-bar: use clutter_grab_pointer()
  fcb1161... Introduce a new GrabHelper
  9a68158... popupMenu: Port to GrabHelper
  05739de... messageTray: Port to GrabHelper
  51b8896... messageTray: Don't care about the pointer's position
  2313851... messageTray: Use a Lightbox to shade the rest of the uiGrou