CC-5709 / CC-5705 : Airtime Analyzer

* Finished the skeleton of the airtime_analyzer service.
* Basic round-robin, reliable AMQP messaging works.
* Using multiprocess arch so the daemon survives analyzer crashes and
  avoids failures propagating to other nodes.
* Basic metadata extractor using Mutagen is done.
* HTTP requests to the File API to are next to come...

python_apps/airtime_analyzer/README.rst

@@ -0,0 +1,30 @@
+
+Ghetto temporary installation instructions
+
+set up a virtualenv
+activate it
+pip install mutagen python-magic pika
+
+You will need to allow the "airtime" RabbitMQ user to access the airtime-uploads exchange and queue:
+
+    sudo rabbitmqctl set_permissions -p /airtime airtime airtime-uploads airtime-uploads airtime-uploads
+
+
+Developers
+==========
+
+For development, you want to install AAQ system-wide but with everything symlinked back to the source 
+directory (for convenience), so run:
+    
+    $ sudo python setup.py develop
+
+
+
+Unit Tests
+==========
+
+To run the unit tests, execute:
+
+    $ nosetests
+
+