running, but boxes not placed correctly

	modified:   .gitignore
	modified:   GNUmakefile
	new file:   NeutronShielding_jpa.cc
	new file:   bin/Linux-g++/NeutronShielding_jpa
	deleted:    include/.NSDetectorConstruction.hh.swo
	modified:   include/NSDetectorConstruction.hh
	modified:   include/NSPrimaryGeneratorAction.hh
	deleted:    src/.NSDetectorConstruction.cc.swn
	deleted:    src/.NSDetectorConstruction.cc.swo
	modified:   src/NSDetectorConstruction.cc
	modified:   src/NSPrimaryGeneratorAction.cc
	modified:   src/NSPrimaryGeneratorMessenger.cc
	modified:   src/NSRunAction.cc
	modified:   vis.mac