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