Notify the SB UI whenever an episode is snatched
Remove obsolete providers

Remove nzbx provider
Remove nzbs 'r us provider
Remove newzbin provider
Remove nzbs_org_old provider
Remove nzbmatrix provider and bin_req

+ fix mixed line endings
Remove notifo notifier (PR-709-dbr)
Merge pull request #751 from itofzo/remove_obsolete_dev

Remove obsolete providers and notifier