- Coded the populateFollowSet, firstOf & nullable functions
- Some helper functions to find whether a terminal & nonTerminal
	is available in the grammar
- TODO: integrate, compile & debug these functions
Merge branch 'master' of https://github.com/nullstring/compiler

Conflicts:
	LL1_Parser/ll1_parser.cpp
	LL1_Parser/ll1_parser.h
Merge branch 'master' of https://github.com/nullstring/compiler

Conflicts:
	LL1_Parser/ll1_parser.cpp