USB: added intent filter
Merge branch 'master' into usb
USB: basic USB functionality - sending & receiving

Sends two bytes each time you change setting of a seek bar or direction
radios. First one is command and second is value. Commands:
  b - brightness (0-255)
  s - speed (0-255)
  d - direction (0-127 is left, 128-255 is right)
USB: changed direction commands

'L' for left and 'R' for right spinning direction.