Add blueflood-cloudfiles module

This bumps guava to 15 due to a jclouds dependency conflict. 

The serializer will be replaced by one that is being worked on by Chinmay, the current one does not work as-is.

This will upload json dumps of all rollups performed to Rackspace Cloud Files. This is to enable things like bulk insertion across all tenants into Hadoop or Hive for after-the-fact batch processing jobs.