v0.1.11-alpha SoapySDR Support

• Additional channelizer and demod visualizer optimizations
• Waterfall optimizations
• DC now only corrected on center channel; waterfall will display DC spike until new method to remove it is resolved but it will not affect demodulation.

Win64 build has been added and should work with latest PothosSDR (which includes SoapySDR modules) from: http://downloads.myriadrf.org/builds/PothosSDR/
more specifically http://downloads.myriadrf.org/builds/PothosSDR/PothosSDR-2015.10.05-vc12-x64.exe
Edit: Updated Win64 binaries with updated libs and removed unneeded files

SoapySDR modules are not included, see:

• https://github.com/pothosware/SoapySDR/wiki for installing SoapySDR (and some binary links)
• https://github.com/pothosware/SoapyOsmo/wiki for GrOsmoSDR driver support (AirSpy / FCDP / Osmo / etc)
• https://github.com/pothosware/SoapyBladeRF/wiki for BladeRF driver
• https://github.com/pothosware/SoapyUHD/wiki for Ettus USRP

Three new SoapySDR modules that don't require gr-osmosdr / boost:

• SoapySDRPlay: https://github.com/pothosware/SoapySDRPlay/wiki/
• SoapyRTLSDR: https://github.com/pothosware/SoapyRTLSDR/wiki/
• SoapyHackRF: https://github.com/pothosware/SoapyHackRF/wiki/

Devices can now be used remotely (tested /w Raspberry Pi too) via:

• SoapyRemote: https://github.com/pothosware/SoapyRemote/wiki/