Include correct URL in JSON response for "list tables" call

The JSON response to the "list tables" REST API call now returns
the correct URL for each table in the "href" attribute.

Closes-Bug: #1388828

Change-Id: Iee1afec0c82e81fd105d375d5bcb343cb43b71d1
Merge "Include correct URL in JSON response for "list tables" call"