[M3commit] CVS Update: cm3

[Randy Coleburn]

CVSROOT:	/usr/cvs
Changes by:	rcoleburn at birch.	10/03/12 00:55:52

Modified files:
	cm3/scripts/install/windows/: cm3CommandShell.CMD 

Log message:
	Add features to look for root of cm3 installation in location of currently running CMD script, then in folders on PATH environment variable, before defaulting to "%SystemDrive%\cm3".  Of course the "Root path" argument can still be used to force a specific location.--R.Coleburn