Log Message:
Update to 2.8.6:

Fixes
  * Ensure the correct window is focused when minimizing (Elijah)
  * Fix keynav with mouse focus (Elijah)
  * Fix several race conditions in window focusing (Elijah)
  * Focus the top window when lowering by frame click (Ken)
  * Fix some compiler warnings (Kjartan)
  * Fix some valgrind-reported errors (Elijah)
  * Fix some potential issues with autoraising windows (Elijah)

Translations
  * en_CA(Adam Weinberger), it(Luca Ferretti)