Trove list should include replication info

[Greg Lucas]

The trove list response should include some information about replication: at a minimum it should include the slave_of attribute that indicates an instance is a replication slave.

This will be necessary for Horizon to support the 'detach' action to detach a slave from its replication master.

[Greg Lucas (glucas-q)]

Rolled this change in to the pending change for including slave_of and slaves in 'trove show' output:
  https://review.openstack.org/105758/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/105758
Committed: https://git.openstack.org/cgit/openstack/trove/commit/?id=87b621b2d904ef531e4e9d33679c6d67de21ef7b
Submitter: Jenkins
Branch: master

commit 87b621b2d904ef531e4e9d33679c6d67de21ef7b
Author: Greg Lucas <email address hidden>
Date: Mon Jul 7 14:12:19 2014 -0400

    Add replication slave info to instance show

    Update the 'show' response for an instance:

     - If the instance is a replication slave, include the slave_of id.
     - If the instance is a replication master, include the list of slave
       instance ids.

    Update the 'list' response to include the slave_of id.
    Add CheckInstance tests for slave/slave_of info.

    (Unrelated: remove a #TODO comment that has already been addressed.)

    Partially Implements: blueprint replication-v1
    Closes-Bug: #1340359
    Change-Id: If8a154083d0095606fb3ee115cc9b66ab788cbb4