3.1.91.1
========
* Fix problem where certain application updates would get lost [#657071, Owen]
* Fix a problem where after resuming from the screensaver, things got
  slow [#658228, Jasper, Adel]
* When a monitor is plugged or unplugged, keep existing windows on their
  current monitor [#645408, Alex]
* Remove 'Mutter' title from alerts such as
  "The widow '%s' is not responding" [Matthias]
* Remove pointless warning:
   Received a _NET_WM_MOVERESIZE message for %s; these
   messages lack timestamps and therefore suck.
  [Rui]
* Misc bug fixes [Jasper]
* Build fixes [Javier]

Contributors:
 Matthias Clasen, Adel Gadllah, Javier Jardón, Alex Larsson, Rui Matos,
 Jasper St. Pierre, Owen Taylor

Translations:
 Ihar Hrachyshka [be], Bruce Cowan [en_FB], Daniel Mustieles [es],
 Claude Paroz [fr], Andika Triwidada [id], Luca Ferretti [it],
 Rudolfs Mazurs [lt], Piotr Drąg [pl], Duarte Loreto [pt],
 Matej Urbančič [sl], Tirumurti Vasudevan [ta], Chao-Hsiung Liao [zh_KH, TW]