Byebye quit

@cooperia @Fito Would either of you please review this refactor:

- Getting rid of quit queue, as we no longer use it.
- Getting rid of file marshal.  It was introduced to transfer file via rabbitmq.  We have decided that it was inefficient to do it that way.  Instead, files are uploaded directly to s3 and urls can be transferred via rabbitmq.  
- Also updated some rspec syntax to rspec 3.0 compatible, but not nearly done yet.