Merge pull request #7 from ashirley/python-control

Better UI including utility control and use of the newer arduino->pi protocol
changed protocol for requests. Added WIP drive scaling routine. Do not test with motors!
made driveScale work. routine accepts a char between 0 and 9, or F for 100. Closes #8
fixed brake not being released when drive was restarted
tidying variable names
Merge pull request #2 from neothermic/bettercomms

Bettercomms