trove: use version-less endpoints
trove: use version-less endpoints

1/ configure auth_uri / identity_uri new parameters in puppet-trove
2/ use version-less endpoints like we try to do in other services.

Change-Id: I6deb3db4cb5d6ca534d780a2262c52b2adfd1b83
Depends-On: I66d5233c8981763a0a341740911fb24dd0e8d479

openstack/puppet-openstack-integration,openstack/puppet-openstack-integration,openstack/puppet-openstack-integration