f4exb/sdrangel v4.14.16

Maintenance release

on GitHub

Fixes and enhancements to the code

• ATV demod: fixed initialization issues. Fixes #560
• GLSpectrum: synchronize spectrum running with the GUI spectrum freeze button. Fixes issue #561
• File Input: refactored FileInputThread to FileInputWorker object moved to thread. Fixes #562
• More changes based on the above in plugins where the run() method was not doing anything useful (Was a sleep(1))