modified trigger function in WSA class, began implementing level triggers in specA
enabled triggers in plots
connected region selection lines with trigger controls
added work-around for capture device always configuring the device
capture device now configures the real device if a trigger is disabled
triggers now get disabled if the user retunes
triggers are now disabled in modes that do not support triggering, fixed min_level/ref_level textboxes
fixed decimation/fshift not being applied, plot now rescales properly when decimation is changed
fixed fshift not applying
fixed sweep Device captures
triggers now center properly in SH mode, switching between SH and ZIF mode is now fixed
fixed issue where RFE mode was not set while using an external digitizer
began implementation of WSA class only updating device when values have been changed
fixed WSA device only updates when a state has changed
store now stores IQ data for each trace
fixed indentation, frequency textboxes now round to 2 decimal places
use state.rfe_mode()
use state.sweeping
hide level trigger control until working in firmware
Merge branch 'level_triggers'