*moved README into /doc
*README is now split into README, LICENCE and INSTALLATION
*moved MIDI In channel from OpenDeck.ino to OpenDeck.h
*MIDI channels are now easier to change since they're defined in their
actual value
*removed definitions of MIDI Note Off and debug MIDI channels
*defined CONVERT MIDI CHANNEL functions to convert their real value into
value defined in MIDI specification
*lots of code cleanups
*bumped last revision date into OpenDeck.ino, OpenDeck.h and
OpenDeck.cpp