Added status reporting to SenderEngine.
Fixed all automatically reported errors up until the latest nightly: CoverManager-related errors; Library/AddNewWindow race condition; fixed BTDigg; fixed LinkSafe; fixed context menu which didn't play nice with Subtitleseeker's lack of FileURL; fixed complete show hang when the downloaded cover has an invalid color profile; removed autoDetectEncoding from GetURL() and its spin-offs because the code was too hackish and not actually in use.