Added additional example
Merge pull request #203 from PX4/debug_example

Added additional debug / uORB example
Hotfix: Add support for 9-channel Spektrum/DSM setups.

Tested by Felipe Reis <felipereis87@gmail.com>
Kill off a couple of files that should never have been checked in.
Don't try to print the idle stack usage (we need to fix it up before the code can be adapted to measure it).
Hotfix: discard NUL characters in readline, rather than faking EOF on the console.
Hotfix: Removed spurious break
Merge remote-tracking branch 'upstream/master' into new_state_machine
Checkpoint: More state machine fixes, commited to wrong branch and now copied over