--Consolidated run-imu and run-encoders into a single program, run-sensors.  This program reads from the IMU and the encoders sequentially and then packages both sensors' data into a single message.  I tested it and it seems to work well.  Still have run-gps as a separate program because the GPS runs at 1 Hz, while the IMU and encoders both update at 50 Hz.  Also, run-gps just sends the raw NMEA sentence back to seykhl, and I plan on parsing it into usable variables on seykhl.