energy now fixed
calculating total particle number
	modified:   include/NSHit.hh
	modified:   other/gnu/A4_gnu
	modified:   other/gnu/electron_fit.eps
	modified:   other/gnu/fit.log
	modified:   src/NSEventAction.cc
	modified:   src/NSHit.cc
	modified:   src/NSRunAction.cc
	modified:   src/NSSD.cc