Fixed Personal Windows not showing list of all players
Added inheritance support to AdminGroups :
	New windows to support it
	The saved files has been modified should be automatically updated
	to the latest version without data loss
	Checks for inheritance loops
Merge branch 'master' of https://github.com/eXpansionPluginPack/eXpansion

Conflicts:
	PersonalMessages/Gui/Windows/PmWindow.php