A little qraat.csv clean up.
Modified qraat.rmg.params to use qraat.csv.

Transmitter data is now handled through the qraat.csv class.
Fixed backend.__lo_calc calculation.
Corrected rmg_plotstatus to actually make server det plots.
Cleaning up qraat.rmg.params.
Modified rmg_plotstatus so that gnuplot produces empty plots when there's no data.
Merge branch 'master' of https://github.com/QRAAT/QRAAT
Modified rmg_plotstatus to use rmg_csv.
Modified all perl rmg scripts that read sitelist.csv to use rmg_csv.
Created enumerated det type in qraat.rmg.params.
Finished doc strings for qraat.rmg.params.