minimal working draft of http server
handler object should proxy itself to graft, but return itself to be used with
other http server patterns.
micro service middleware and other improvements.

* middleware micro service for connect-compatible middleware.
* request module for moving http requests to and from messages.
* fixed some logic problems in use() that would prevent transform piping from working.
added a simple router micro service
Updated variable names in example.
better router micro service
requests will properly move to and from messages.
Merge pull request #5 from GraftJS/draft

Initial Implementation