fixed annoying refresh-bug in jframe update
create seperate QLInputReader class. Got rid of static variable 'form' in swingvisitor
removed JCOmponent superclasses for QL Swing components, created QLJframe class
input verifier implemented
added QLError class, refactored respective classes, removed 'null' input from isOfType method
changed constructor of ExprEvaluator
pdf generator and genButton implemented, fixed bug in grammar
added name-ids to QL-swing components and made cleaner the way that collects teh output data
implemented PDF and JSON output format, selection format frame underconstruction
Json generator implemented, output format selector implemented
got rid of instance of in output generation, created seperate class for output data gathering
added seperate classes for QLLabel and QLComputedField
pdf generator layout fixed
refactored json inner structure
fixed bug in warning message, changed from jscrollpane to scrollpane
UI finished, fixed minor bugs, added proper constants, tests left
package hierarchy changed, names refactored