Cleanup effort in prep for GA push: Trim trailing whitespace... no func change

Namespaces namespaces namespaces guys... EFAIL :)

Add a new module, mod_ratelimit, which can rate limit the outgoing bandwidth to a client. This module was originally written at Joost by Sander Striker, Justin Erenkrantz, and myself. We have been given permission by our employer to contribute this module.