fix error on closing error view
fix error on reopening error view
fix memory leak via refactoring
- I don't know where the leak was, but now it works fine
- The compile command now works with relative paths
- The compile build result view now displays the correct file
- layout and behaviour of error view improved: replace >On Line 4 : < with >4 ><
- a click on the error view now colors the error really red
- more i can't remember now