1.2.2

• Virtual Display / Chained Panels (#3 #26 )
  Thanks to Brian Lough for the input, and hardware for testing:

  YouTube: https://www.youtube.com/brianlough
  Tindie: https://www.tindie.com/stores/brianlough/
  Twitter: https://twitter.com/witnessmenow

... and Galaxy-Man for the donation of P3's for testing.

• Reimplemented PWM brightness correction... things look much better now.
• Bunch of other bug fixes and updated examples (#2 #23)
• drawPixel performance improvements
• Memory allocation improvements
• Fix a regression #28

Library is now pretty much complete for what it needs to do.