Take m_FftCenter into account when drawing overlay.
Add a label for squelsh slider.
Add zoom support.
Implement centering on demodulator when zooming.
Make CENTER cursor capture consistent between move and press events.
Support horizontal dragging
Use retcode.
Drop unused variables.
Drop write-only variables.
Fix d_detector type (fixes unreachable cases).

The only reached case here was DETECTOR_TYPE_SAMPLE.
Use parameter value instead of looking it up from widget.
Silence -Wreorder warnings.
Merge pull request #38 from vpelletier/master

Merge the horizontal zooming code; clean up later.
Merge pull request #39 from EliasOenal/master

Restored GNU Radio audio sink support. (compile option)
Fix gr-audio branch to work on Linux again.

Use the AUDIO_BACKEND define in gqrx.pro to select whether to use pulseaudio or gnuradio-audio.
Reset default FFT size to 4096.
Enable changing FFT size (note: crashes if size < screen res.).
Attempt to fix noise blanker button weirdness on Mac OS X.
Automatic selection of pulseaudio.
Updated README