CFY-1224 made some of the type's inner openstack-specific type properties optional
CFY-1224 allow 'nics' parameter under 'server'
CFY-1224 deduping management network id in server.py so a server can be connected to the management network with a relationship as well
CFY-1224 modified provider context property 'created' to 'external_resource'; added external name runtime property to all types; now supporting resource_id as a name for new resources; added environment variables support for openstack configuration parameters; openstack configuration parameters will also now be stored in a single file instead of 2; it is now possible to pass openstack config parameters even if the file doesn't exist
CFY-1224 fixed plugin.yaml template file
Merge pull request #22 from cloudify-cosmo/CFY-1224-write-openstack-bootstrap-blueprint

CFY 1224 write openstack bootstrap blueprint
CFY-1224 fixed neutron client creation in server.py
CFY-1224 fixed neutron client creation in server.py
CFY-1224 improved validation before connecting to openstack clients
CFY-1224 env variables in openstack configuration now don't get overridden by empty values
CFY-1227 security group now connects to server via a relationship operation
Merge pull request #23 from cloudify-cosmo/CFY-1227-openstack-server-to-security-group-relationship

CFY 1227 openstack server to security group relationship
removed usage of neutron_url parameter
added licenses
fixed transformation of volume display name
merge commit from master
fixed get_resource_id usage
added openstack name runtime property to volume type; refactored delete method and extended sugared cinder client
removed attached_to relationship type
fixed 'cinder_config' into 'openstack_config'