0032: generateCourse last 5 points after headland
0033: relocated "reload courses" button
0034: removed "change mode" line / button
0035: only show offset option in modes 4 & 6
0036: conditional display of save button

not during recording, only when there are waypoints etc.
0037: fixed aiFrontMarker for FuchsFass
0038: security measures for cover functions
0039: unload_tippers cleanup