fix: no longer use kafka's default log retention policy

1. In effort to address IT-47 and with new log aggregation project,
SRP components should use one and only one default log retention
policy, which is set in combination of Splunk and the new logrotate policy.

Squashed commit of the following:

commit d9c6c728ec82fa6cf3d94b23407155287a30892e
Author: Rachel McCuistion <rachel@infochimps.com>
Date:   Mon Mar 17 10:22:37 2014 -0500

    no longer allow Kafka to handle its own log retention policy

Change-Id: Ice4e6b3ef2284822e11776a678efb01ca2e46260
Merge "fix: no longer use kafka's default log retention policy"