* don't use opensubtitles language detection to reduce server load / abuse

git-svn-id: svn://svn.code.sf.net/p/filebot/code/trunk@2701 40b5aca5-6b98-4155-8834-ff3a5bb60073
* consider ".en.forced.srt" style subtitle naming

git-svn-id: svn://svn.code.sf.net/p/filebot/code/trunk@2702 40b5aca5-6b98-4155-8834-ff3a5bb60073