Initial testing of rotator is complete and found problems were fixed.
Rotator settings were completely transferred to system settings, and made available for everyone. A section about rotator was added to documentation.
A feature to filter the list of videos in admin panel by completion of screenshot rotation was added, as well as a feature to display CTR for each video and sort by it.
A feature to reset rotator statistics was added to mass editing.
A new button "Delete and open next" appeared at video and album editing pages in admin panel, in addition to the existing button "Save and open next".
Few small corrections and bugs.