Default config changed:

...so I don't have to change settings after flashing.
testcode for PWM frequency jitter:

every 2^n electric revolutions PWM behaviour is changed in this order:

  - fixed frequency
  - frequency jitter, u8JitterBits=0x3F
  - fixed frequency
  - frequency jitter, u8JitterBits=0x1F
  - fixed frequency
  - frequency jitter, u8JitterBits=0x0F
  ...
  - fixed frequency
  - frequency jitter, u8JitterBits=0x01
  - fixed frequency
  - frequency jitter, u8JitterBits=0x3F
  - fixed frequency
  - frequency jitter, u8JitterBits=0x1F
  ...