Fix typo.
modify http according to guide.
Implement async filesystem fns.
Implement sync filesystem fns.
Implement context fns [fixes #5]
Add copyright notices to filesystem files.
Rework router.
1. redefine namespace
2. merge fn of match-regx to match.
Merge remote-tracking branch 'refs/remotes/tobais/master'

* src/main/clojure/vertx/core.clj:
Merge branch 'http'
Merge branch 'route'