ControlUnit: Remove RPN debugging calls.
Manager: Put an upper limit on the length of time we're willing to wait.
dpp-json: Use a hardcoded UUID for the root node.

00000000-0000-0000-0000-000000000001
ControlUnit: Update list of recognized families.
ControlUnit: add knownAddresses function to retr unique ECU addresses.
ControlUnit: Add accessor for ECU's family string.
Manager: Implement findAllModulesByAddress.
Revamp matching, and store match confidence on the controlunit object.
Manager: Add the current directory to the top of the DPP search path.

Gross...
ds2-dump: Add option to probe all known addresses for control units.
ControlUnit: Expand use of RPN to short int/floats.
Manager: Update error handling.
Manager: Only scan control units that are of the right family.
dpp-json: Use RPN vs factorA/B where possible.
Whitespace patrol.
ds2-dump: Be more specific about an ECU's family in list-ecus.
dpp-json: First pass at parsing EWS fault codes.
Tests: update to look for the proper root UUID.