- Completed coding the RE->POSTFIX & Evaluation of POSTFIX regular
	expression.
- TODO: Compile the NFA class along with the code written by nullstring
	Test the code & debug the errors
Merge branch 'master' of https://github.com/nullstring/compiler

Conflicts:
	Assignment2/lex/nfa.cpp
- Dealt with conflicts.. still some problems may be in indent tabs