pics taken, detector upgrade
	modified:   include/NSDetectorConstruction.hh
	new file:   pics/frontView.ps
	new file:   pics/frontView_noCover.ps
	new file:   pics/sideView.ps
	new file:   pics/sideView_noCover.ps
	new file:   pics/topView.ps
	modified:   src/NSDetectorConstruction.cc
	modified:   vis.mac