troveclient 1.0.4 released

Needed for Heat:

- support providing datastore type and datastore version when creating
  Trove instance (new feature in Trove Icehouse,
  introduced in troveclient 1.0.4)

- support providing network id when creating Trove instance (needed in
  presence of multiple Neutron networks, introduced in troveclient
  1.0.4)

Change-Id: I476c16ee5419ef5d0a555071b825de897c3cbf5b
Merge "troveclient 1.0.4 released"