Push version to 12-beta4, 212.
Push version to 12-beta4, 212.

0359xiaodong/SeriesGuide,hoanganhx86/SeriesGuide,r00t-user/SeriesGuide,UweTrottmann/SeriesGuide,UweTrottmann/SeriesGuide,artemnikitin/SeriesGuide,epiphany27/SeriesGuide