Revert "Fixed up hubot to support using the httpd-post-say tool."

This reverts commit 82fdf0304fe40ae5edf0a93da71758d80ee8cd7f.
Fixed up hubot to support using the httpd-post-say tool.

Foreman can now use the httpd-post-say coffee script utility
shipped with hubot.  This allows for simplified configuration of
this tool and abstracted interaction (this should now work with
IRC, XMPP, Campfire, etc).