Allow scans to cross over meridian without going all the way around.
Properly display meridian crossing.
Properly account for negative angles in dd->dms conversion. Have 'begin motion' command wait for response before sending more commands.
Properly display simple scans on sky chart.
Give time to enter jog mode for circular scan.
Properly update position after circular scan.
Have slew function use non-wrapping azimuth and handling wrapping in functions that call it.
Use older PyGalil.