Change weight of splitPane
Added keyboard shortcuts

F5 = compile and run
F6 = step by step mode
F7 = stop
Added keyboard shortcut and control button mode check
Error line (if given) is highlighted in source code
Parameters are highlighted
Fixed tree table column width bug
Added language support for table columns
Updated german translations
Merge pull request #96 from fabian1995/master

GUI Improvements + Bugfixes
Merge pull request #97 from Peda1996/master

Small fixes