CFY-1352 removed unused relationship type
CFY-1352 improved router code; fixed a bug in use_external_resource validation for the subnet and port types
Merge branch 'master' into CFY-1352-openstack-router-type-improvements
CFY-1352 modified plugin.yaml plugin's url for tests
CFY-1352 added external_network property to router; made other various improvements
CFY-1352 fixed ctx usage
Merge pull request #39 from cloudify-cosmo/CFY-1352-openstack-router-type-improvements

CFY 1352 openstack router type improvements