(doc) Documented crate.
(doc) Updated README.
(doc) Documented Params struct and interface.
(doc) Documented Router and route.
Merge pull request #11 from iron/doc/README

(doc) Updated README.
Merge pull request #10 from iron/doc/router

(doc) Documented Router.
(feat) Added Cargo support.
(doc) Updated example for chain.link changes.
(fix) Removed breaking comments.