Better query code string formatting
Add private qualifier
TODOs for Invoca API/event structure
WIP API integration [ci skip]

This is a work in progress of modifying our broker to use the command
queue and update exchanged as detailed by Invoca.

The simulator is modified to send events over the update exchange, but a
remaining TODO is to get it to listen on the control queue
cql-rb 1.2.1 chokes on Ruby 2.1.0 apparently, revert to 2.0.0
Fix things up to match Invoca cassandra schema
Use called_national_number to distinguish calls made to an organization
Pass around org pilot numbers correctly and add index notes to readme
Refactor get_calls and insert_call + generate UUIDs
Quiet failing specs for now
More WIP API communication
Connect to Invoca API and Cassandra database
Use config file to feed cassandra connectiong information
Basic call_start and call_stop functionality works