Murano part reconfiguration

* change for murano.conf murano/url from localhost -> management_vip/controller_node_address
in case of HA and non-HA deployment mode
* update db manage command due switching to alembic

Change-Id: I44d381900d8317e3bc12f0dd938c74ce6f33af44
Implements: alembic-migrations
Related-Bug: 1348594
Merge "Murano part reconfiguration"