Add README
Add calc3a/b. Remove Tests/index.html
Change calc3[ab].c to 2 space tabs
Add calc3[ab].c and fix their symbol table issues.
 * Minor edits to fix warnings.
 * Modify makefile.
(Symbol Table) Make lex file more useful. Improve calc3a.c
Add do-while and repeat-until functionality to calc3a.c and calc3g.c
Add do-while and repeat-until to calc3b.c
Enfore declaration of variables before use.
Merge branch 'symbol'