Moved tests out of direct reach of non-test classes
Improved type checker style, added undefined type
Extended unit tests
Updated grammar and parser, lexer
Reordered packages
Uniform code style
Extracted todo from readme
typo
Implemented StatementEvaluator
Cleanup of dependencies.
renamed eval package to evaluator
Moved environment dependency one level of abstraction down
Renamed eval to evaluator in tests.
Reorganized visitor/evaluator packages
Moved test package
No override of toString specific
Load sample QL from file in test, also accept underscores in identifiers
Added underscore identifier tests
Nameswap: JACCParser -> QLParser, QLParser -> JACCParser
Nameswap pt2: QLParser <-> JACCParser