add String, System, Array and fix bugs
add SymbolMap
fix
fix conflict
Merge pull request #35 from wakama2/master

create String/System/Array bind
Fix IfStatement syntax
fix MethodDecl/MethodCall/If grammars in order to enable to parse 'fibo' code.
Merge pull request #36 from tetsurom/IfStmtFix

Great!!
rename Def files