Fix issue with altitude axis speed being too slow due to issue with handling wraparound.
Add coordinate bounds and option to use GPS time to configuration file. Fixed issue with the Galil controller becoming unresponsive due to speed being set to 1.
Have circular scan wait until stopped to constrain the azimuth to [0, 360) degrees.
Use nearest of the many numerically distinct (but physically identical, due to wraparound) starting points to start a circular scan.
Fixed stopping of indefinite circular scans. Corrected divide by zero error in calculating scan time (for real this time). Have wait function continue to try fetching the motor speeds if request times out.