add forgotten files, remove a broken Hamiltonian and fix two others
	modified:   Makefile.am
	new file:   box.c
	new file:   box.h
	modified:   calc-gamma.c
	modified:   k-dot-p.c
	modified:   zener.c
	modified:   zincblende14.c
	modified:   zincblende14nr.c
	deleted:    zincblende14ns.c
	modified:   zincblende2pba.c