Added tokens in parser, build failing.
Merge branch 'master' of https://github.com/igniting/ada-compiler
Removed Keyword NULL and begin
Removed errors in tokens.
Added return statements in lexer. TODO: Handle keywords.
Resolved issue of keywords. NEXT: Start writing parser.
Corrected formatting tab/spaces
Added name partially
Merge https://github.com/igniting/ada-compiler

Conflicts:
	lexer.l
	parser.y