What is new:
- vtuner interface changes to support new dvbs2 api (set-/getproperty)
- dont allow writes to video/audio device during flush
- clear framebuffer on videomode change
- fixed alsa playback deadlocks
- add possibility to use alsa interface parallel to running audio decoder (for audio effects or other things)
- fixed crash when switching from 1080p output back to 720p/1080i/or SD modes
- better audio error handling
- fixed boot progressbar for dm800se
- add minimum fan voltage so completely disable the fan is no more allowed
- better fix for greek h264 services
- implement color oled brightness regulation for dm800se