Add cli command for retrieving policy and rule status

[Amey Bhide]

Add a subcommand to request status of a rule or policy

commit 50d3d073c42569032d92a53413f57564c0e79ac9
Author: Alexander Yip <email address hidden>
Date: Fri Apr 24 14:53:13 2015 -0700

    Add status api calls for policy and rule

    This change allows an API client to request the status of a rule or policy.
    The response will reflect the state of the policy engine, not the state of t
    database, since the policy engine and the database can become out of sync.

    For a policy that exists, the API response will contain the policy name and
    id. For a rule that exists, the API response will contain the rule name, id
    comment, and original string. If the rule or policy does not exist, the
    congress server will return a 404 error.

    Change-Id: I5c134e14d1ae5fec802a649be9834f86dab5c37a

[Anusha (anusha-iiitm)]

Amey, Are you still working on this bug?