Copied LPD8806multi.cpp to LPD8806multiTXRX.cpp (and .h)
Modified to use ports PL and PB for data and clock
Switched to PB0 for testing.
Copied ethercontrol to ethercontrolTXRX
Various changes

Use of PB conflicts with ethernet shield
Removed adjustment of heap start (so it should work with current setup)
Added arm() to Ableton.java
Added setCC() to Synth.java
Better handling of missing midi devices
Added Drums Visualizer
Added read of urlconfig.txt
Added setControl() to Ableton, don't automatically disarm tracks
Modified Ableton arming, control setting