Added Sys.exit, Check node version before accessing #Immediate

setImmediate/clearImmediate aren't available for Node < 0.9,
in this case setImmediate and clearImmediate are left undefined.
renamed Timer to NodeTimer (not good, but it is broken with NodeJS Webkit)
prevent errors with NodeJS Webkit (should not modify NodeJS behavior)
added NodeJS Webkit native API (not complete yet)
added getBytes() support
    -Fixed Json macro bug
    https://github.com/dionjwa/nodejs-std/issues/10

    -Move Node.parse->Node.json.parse (also stringify).
    https://github.com/dionjwa/nodejs-std/issues/4

   - renamed 'childProcess' to 'child_process' for consistency with the other node modules.

    Added unit tests for the above issues.
Fix travis config.
- Use the public url for cloning the repo for travis
- Version bump.
Add the contributors.
Update haxelib.json

If anyone want to contact me for the MongoDB and Pubnub stuff..
I may also come back to do some nodeJs stuff soon :)
read file as utf8 instead of node buffer
added Clipboard support
Fix #14
add Zlib to Node Class

add Zlib to Node Class
Miss concat method of NodeBuffer
fix : MongoDb Compile Error
fix mongoDb __init__
Node canvas.
Minor cleanup.
travis CI fix and updated package.