- fixed: generalized support for translations
- added: allow ffmpeg its speedup tricks
- code cleanup
- 
- fixed: endless loop in StopScaler()
- reduced log output
- added: flush encoder buffer at the beginning of encoder thread
- fixed: WaitForRTGrabbing(): return immediately if RT-grabbing is not
possible, avoid false-positive warnings
- fixed: correct toggling of visibility of playlist widget
- fixed: deletion of multiple items
- fixed: play first added playlist entry
- 
- fixed: correct EOF detection, avoids problems during "next/previous
track" process in playlist widget
- added: extended translation