Multiple bugfixes
1. 2 wires - not going next on currentsource1.ac
2. fieldmeteractor - segments > 0
3. electromagnet radius - next not coming
4. coil loops on ac difficult - moved in front
5. electromagnet field magnitude was wrong - x-axis calculation mistake
6. direction prober - arrow too small - scaled up
7. field strength change - almost no effect
8. field - without changing n to south pole, next was coming
9. homogeneous field samples too far apart
10. rotation angles not logged - slider control changes not logged
11. crash handler - should send screen resolution