* fixed hang on startup on a new install (or upgrade?), introduced likely in 10.0.1
* reworked/enhanced setPlayState routine
* further sped up opening of cached webvew
* made items on FeedsSettings reflect changes for single feed setting
* ensured languages filter show up even with only 1 language
* ensured some coroutine jobs are singltons
* various code refactoring and enhancements
