fixed some WS issues and added tests for for loops
Merge branch 'Parser' into ParserRelease
Nil hotfix
Added packages to GlobalEnvironment
Merge branch 'interpreter' of https://github.com/kobreu/compiler into interpreter
Merge branch 'interpreter' of https://github.com/kobreu/compiler into interpreter
Merge branch 'interpreter' of https://github.com/kobreu/compiler into interpreter
Merge branch 'interpreter' of https://github.com/kobreu/compiler into interpreter
removed ws
updated syntactic sugar
Matthias release
Sugar sugar.
Added require method
Merge branch 'interpreter' of https://github.com/kobreu/compiler into interpreter
parsing all homework files
Exp. handling.
Merge branch 'interpreter' of github.com:kobreu/compiler into interpreter
Merge branch 'ParserRelease' into interpreter
Minor fix
got back the serialization tests