Some changes to the symbol table

Did not get as far as I hoped but I think I am clearer about what needs
to be done tomorrow for semantic records.
Hopefully this completes the rebase
Merge branch 'master' of https://github.com/JonDub/CSCI.468-Compilers

Conflicts:
	Project1/SymbolTable.cpp
	Project1/SymbolTable.h
	Project1/main.cpp
	Project1/parse_tree.txt
	Project1/parser.cpp