v1.4.6 Added checks for errors in DialogInput_V9.txt file

1. Added checks for errors in DialogInput_V9.txt file. If you enter a bad value, it will correct itself next time around. This is not a perfect solution, but I didn't want to duplicate all that error checking code since the global variables did not seem to work correctly within a subroutine for those checks and I could not figure out why.
   For instance entering .4.3 for the M/F Gap will give you an error, but next time you run the program it will reset that value to .3
2. I set default pattern type to Pattern instead of Helix since it is much faster & more accurate.
3. Added the M/F Gap size to the Nut Body name.