added basic parser structure
adds body for "(" in parseExp
Merge remote-tracking branch 'origin/master' into tbranch
adds return statement for parseRest
add one token lookahead implementation
add cons usage in parseRest()
add commenting in parser
add file input and parser calls
add filestream and token stack with tokenpeek implementation
add minimal parseList() functionality
add changes to data.txt
Merge branch 'master' of https://github.com/tford9/CSC-4101-Projects into vbranch

Conflicts:
	proj1/Project_Skeleton_Code/BooleanLit.java
	proj1/Project_Skeleton_Code/Nil.java