fix state.sweeping call
remove print
pressing return when text box is selected now connects to device
title now includes IP of box connected
Merge branch 'bug_fixes'
cleaned up plot state
renamed reference_level label
compute_fft now has apply_spec_inv and apply_window flags
added DSP panel widget
fixed hotkeys
removed 20dB attenuation addition to power spectrum
enabled level trigger controls
fixed triggers not always applying settings when no data is being received
Merge commit '6a7943c71c0bbd5e426005ea9e5cc43f4c85d602'
fixed hotkeys
removed 20dB attenuation addition to power spectrum

Conflicts:
	pyrf/gui/dsp_widget.py
	pyrf/gui/gui.py
enabled level trigger controls
fixed triggers not always applying settings when no data is being received
fixed SHN plot frequency range
speca vrt state packet generation and parsing