FW UPGRADE 2.14: some minor changes, uses LED for status updates.
Merge branch 'master' of github.com:simonspa/pxar

Conflicts:
	CMakeLists.txt
	core/rpc/rpc_calls.cpp
Merge branch 'master' of github.com:psi46/pxar
Add printout of missing bytes after USB timeout as suggested by @werdmann