Fix JTextfield listener (use DocumentListener instead of ActionListener)
Add computed question
Add computed statement validation
simplification
Merge branch 'master' of https://github.com/software-engineering-amsterdam/sea-of-ql
encapsulated visitors
Merge branch 'master' of https://github.com/software-engineering-amsterdam/sea-of-ql
merged evaluators
Added visitors to check type compatibility
cleanup
Merge branch 'master' of https://github.com/software-engineering-amsterdam/sea-of-ql
prepared support for boolliteral in interpreter
Refactored Grammer for better readability
Refactored TypeChecker regarding abbreviations / readability
Wrapped string input as Message
Renamed IfThen / IfThenElse to IfThenStatement / IfThenElseStatement
Moved error classes to new sub package
Restarted
Wrapped question Str label into new QuestionLabel object
Wrapped question Ident variable into new QuestionVariable object