3.7.3
=====
* new extensions: default-min-max, static-workspaces
* alternate-tab now uses the built-in window switcher and just
  takes over the switch-application keybinding
* workspace-indicator: is no longer part of classic-mode
* we now install classic-mode data files for gdm, gnome-session
  and gnome-shell, so if you enable classic-mode you get a new
  session option in GDM
* updated translations (ar, es, pl, ru, sl, zh_HK, zh_TW)