cleaning
 Changes to be committed:
	deleted:    NeutronShielding.cc
	deleted:    include/#NSDetectorConstruction.hh#
	deleted:    include/NSActionInitialization.hh~
	deleted:    include/NSAnalysis.hh~
	deleted:    include/NSDetectorConstruction.hh~
	deleted:    include/NSDetectorMessenger.hh~
	deleted:    include/NSEventAction.hh~
        deleted:    include/NSHit.hh~
	deleted:    include/NSPhysicsList.hh~
	deleted:    include/NSPrimaryGeneratorAction.hh~
	deleted:    include/NSPrimaryGeneratorMessenger.hh~
	deleted:    include/NSRun.hh~
	deleted:    include/NSRunAction.hh~
	deleted:    include/NSSD.hh~
	deleted:    include/NSSteppingAction.cc~
	deleted:    include/NSSteppingAction.hh~
	deleted:    include/NSTTree.hh~
	deleted:    include/test.mac~
	deleted:    test.mac~