GUI: Also log position and velocity
SIMULATOR REFACTOR & CLEANUP: Identical functionality, cleaner code
***NONWORKING*** SIMULATOR: Code Style Cleanup, Port to Settings. SETTINGS(...'num_sats'...) breaks the simulator
Keep settings list in the order declared in code.
Handle one byte int settings without using sscanf's %hhd.
SIMULATOR & SETTINGS: Simulator now uses only the Settings subsystem
SETTINGS: Keep ordering of settings as defined in code
Merge pull request #24 from njoubert/simulator-wip

Simulator-WIP: Integrated with Settings. closing the Piksi-side simulator code for the release.