LimeSDR fixes and new feature
Now building with release 18.04.1 of LimeSuite that appears to fix the Tx problems. Also the Tx sample rate on the Mini can now go below 2.5 MS/s (tested at 1 MS/s). Unfortunately the Lime-Mini does not work in Windows since libusb and Zadig driver do not seem to work with the Mini. It is fine with the LimeSDR-USB though.
The transverter frequency translation has been implemented for both Rx and Tx thus implementing issue #155
Fix intermittent crash of several plugin at delete time
Some plugins that are using the FFT filter were not deleting it at the right time thus in some cases some samples could still be processed through it after deletion. Sometimes it was not deleted at all thus creating a memory leak. This is now fixed and resolves issue #159
Other changes
- UDP source and sink: make sure audio samples are always on 16 bits
- UDP source and sink: added dialog elements for address and port
- NFM demod: asymmetrical fade in and fade out for the squelch