Add better binary detection to LuminaUtils, and setup lumina-open to use it.
Oops, fix a typo in the lumina-open usage: Missed removing a couple of the QSettings lines
Make sure the directory catch for running lumina-fm happens at the end (in case of an invalid default that was set).
Merge remote-tracking branch 'upstream/master'

Conflicts:
	lumina-open/main.cpp
save settings for lumina-screenshot (target and delay)