Init checking of the existing sessions
First effort to use DBus to communicate between apps. Enable opening the new sequence in the existing session
Check all input args
Merge branch 'master' into featureSession
Merge branch 'master' into featureSession
Clean unused code to handle dbus
Format code
Merge branch 'master' into featureSession
Fix some problems with recent file list
Merge branch 'master' into featureSession

Conflicts:
	app/plaYUVerApp.h
Fix bug in the recent files
Merge branch 'master' into featureSession