CIMI - implement initial_states capability in mock driver - DTACLOUD-447

https://issues.apache.org/jira/browse/DTACLOUD-447
Deltacloud - fix bug in to_hash (json) for storage_volumes - DTACLOUD-454

https://issues.apache.org/jira/browse/DTACLOUD-454
* server/Rakefile: rename task test:cimi:models to test:cimi
CIMI unit tests: introduce helper read_data_file
CIMI: move deep cloning to CIMI::Model::Schema#deep_clone
The CIMI spec does not permit providers setting properties on their
own. They are strictly for use by the client.
The 'entities' table now associates entries with CIMI::Model objects rather
than backend objects, and treats the DB as a proper look-aside cache.

This has the advantage that converting from backend objects is decoupled
from looking up the common attributes we store in the database (name,
description, properties)

The lookup of common attributes now happens when the model object is
constructed (at the point that the :id attribute is set, to be exact), and
can be saved with a call to its save method.
passing realm option when creating a new VM
DTACLOUD-416 do not base64 encode the user data
Openstack: Adds 'launch_time' attribute mapping to instance collection
[Core] add launch time to html instance view - related DTACLOUD-455

https://issues.apache.org/jira/browse/DTACLOUD-455
Deltacloud - adds maps openstack 'regions' to deltacloud realms - DTACLOUD-443

https://issues.apache.org/jira/browse/DTACLOUD-443

API-Change: Added the 'resource_types' attribute to Realm model
Deltacloud - adds EC2 driver import key functionality - DTACLOUD-438
(+updated gemspec for aws 2.7.0 required here)

https://issues.apache.org/jira/browse/DTACLOUD-438
Allows to specify a username when running a comman - DTACLOUD-458
Rename aruba driver to arubacloud driver - DTACLOUD-444

https://issues.apache.org/jira/browse/DTACLOUD-444
Fix issue with arubacloud driver - savon client configuration method changed

https://issues.apache.org/jira/browse/DTACLOUD-444
SITE: Aruba driver name change DTACLOUD-444

https://issues.apache.org/jira/browse/DTACLOUD-444
[Core] DTACLOUD-450 update gemspec for latest openstack rubygem 1.0.9

https://issues.apache.org/jira/browse/DTACLOUD-450
CIMI Tests: Adding Resource Metadata test part 4, InitialStates

TrackedAt: http://tracker.deltacloud.org/patch/d7174327854a3ad6fe13a891f7fdd22c980dbc9e
CIMI - Test Plan, Resource Metadata Capabilities - incorporating review changes

TrackedAt: http://tracker.deltacloud.org/patch/f59c14c0c59c1f89e10d372121a8aa7aae58a4d3