Drop mediacrush.net
Merge branch 'master' of github.com:MediaCrush/MediaCrush
Fix for a race condition in process_file(). If a hash was not in Redis when process_file() was executed, processing would fail without deleting the hash from the database.

Signed-off-by: Martin Stone <martin@d7415.co.uk>
Better fix for MediaCrush/MediaCrush#611.

Signed-off-by: Martin Stone <martin@d7415.co.uk>