 Version 6.12.7

* fixed issue in auto-download where number of played is not correctly counted
* in AutoDownloadPolicy, Newer or Older now means include episodes with playState not being Skipped, Played, and Ignored
* in Subscriptions sorting, Played means Skipped, Played, or Ignored, Unplayed means any state lower than Skipped
* fixed high CPU usage in Download view
* removed a few useless classes and the useless test modules
