3.19.2
======
* Fix crash on monitor unplug [Rui; #756796]
* Exit cleanly on initialization errors [Owen; #757311]
* Allow to determine backend setting from session type [Ray; #741666]
* Fix DRM device detection for non-PCI devices [Alban; #754911]
* Don't force placement of windows without buffer on wayland [Marek; #751887]
* Fix initialization of bypass compositor hint [Rui; #758544]

Contributors:
  Alban Browaeys, Marek Chalupa, Rui Matos, Florian Müllner, Ray Strode,
  Owen W. Taylor