Updated modules, fixed tons of bugs.  Streamlined code. Added new error handling system for syntax errors..
Merge branch 'master' of https://github.com/sethicis/cs485shell

Conflicts:
	parser.c
	resolved conflicts, sort of
Added debug module to repository.
Fixed compile errors with LTHAN and GTHAN not being defined in global.h.
Modified parser.c to hopefully, correctly exit on QUIT.