Created new grammar file and classes
Wrote QL4 main wrapper
Renamed listener to visitor and started the wrapper
Small change in representing structure in QL4 grammar and some comments
Split question into two different visits
Split expression even further into different visit functions
Added comments and rewrote individual element names
Build file changed to new grammar and debugged grammar
Moved the grammar to its proper folder
Changed package from form2 to QL4
QL4 first parser generated
Small changes before pulling