changed frequency scale on main spectrum to be start/center/stop (mfarhan request)
frequency labels now show 4 decimal places instead of 2
Merge pull request #1 from mfarhan12/start_stop_flabels

frequency labels now show 4 decimal places instead of 2
freq axis now has normal tick labels AND start/center/stop (no "Frequency" label)
make rtsa/spectrum_analyzer.py easily debuggable (ie: launchable without distutils entry point)
Merge remote-tracking branch 'remotes/pyrf/master' into start_stop_flabels

Conflicts:
	pyrf/gui/plot_widget.py
	pyrf/gui/spectrum_analyzer.py
fixed merge issues
added an extra digit to the frequency ticks in the power spectrum (hackorama)
Merge remote-tracking branch 'remotes/pyrf/master' into start_stop_flabels
resume work on 2.5.0dev
moved rbw controls to frequency controls area
rbw values will defult to minimum value if not sweeping
added PyRF version to the title
fixed combo box changing to non-existant index
added .spec file to gitignore
moved RBW values to device properties
delta label in HDR mode shows more granularity
added safeguards against invalid frequency ranges
Merge remote-tracking branch 'mfarhan/version_title'
Merge remote-tracking branch 'mfarhan/default_rbw'