Added dependencies for websockets support.

Added: express, browserify-middleware and mqtt.js-over-websockets
Added websocket support.
Added CLI parameters for HTTP and websockets.
Added a little static web server to websocket support.
Added serving a browserify bundle to websocket support.
Setted the MQTT library to the browserify branch.
Merge pull request #57 from chriswiggins/master

Fix closing issues and clientID specification
Fixed SSL spurious failures.
Upgraded LevelUp and associates.
Added contributors list into the README.
Bumped v0.12.0. Updated HISTORY.
Moved everything to Buffers to increase performance!
Support for node v0.8 of binary payloads.
Fixed failing test on node v0.10.
Merge default options with config files if property not otherwise specified.
Add unit test for -c + -v (- logger).
Merge pull request #58 from justcfx2u/fix-merge-opts

Merge default options with config files if property not specified
Keep calm and redis on if no client to clean.
Added some demo slides for websocket integration.
Merge branch 'master' into websockets

Conflicts:
	package.json