Moving rackspace database client to openstack
Added support for HP provider
Moving rackspace db tests to common
Fixed HP & Openstack db providers, added tests
Added tests for OpenStack and HP database providers
Added test for database flavors for HP & Openstack providers
Adding Database client tests for HP & OpenStack
Adding DBAAS service instance tests for HP & OpenStack provider
All tests passing
Adding client error tests for database
Documentation for DBAAS Services
Responding to Code Review comments
Updating copyright headers
Merge pull request #347 from Phanatic/DBAAS_Service

[provider] [test] [doc] Database As a Service (Trove) Service implementation