Set version of bunny to latest 1.1.0 version which only depends on the amqp-protocol gem
Version 1 of code for initializing a thread inside Rails that will listen to RabbitMQ digitisation queue for messages about new digitised materials.  This works with the thin server in my local development environment.
work in progress, cannot read from queue when running Valhal with Passenger
Changing MQ stuff to listen to preservation update queue, seems to work when I run passenger on my local host. Need to test it out in dev next.
Change comments and logging to reflect change to preservation workflow
Removed some commented code
Removed some defunct code
Changed to config to response as per preservation wiki
Adding the Passenger workaround to reset RabbitMQ connections after worker threads are forked.  Needs testing in DEV environment as I can't see any strange behaviour happening in my local environment
Merge branch 'digitisation_ingestion'
Removing the passenger gem as I don't think we need it