Seperate Child Db Server

For Issue  #14:

* Spawns db.js and opens ports 3000,4000,5000 for each db with multilevel
* Parent sends the child the settings to get the settings.path

NOTES: 
* Haven't had experience with the Async Module, so refactoring might take a while on my part.

Do you mean like this?

```js
// Connect to DB from Child Servers
var connectDB = function(port){
  // Start multilevel client
  var db = multilevel.client(),
      con = net.connect(port);

  // Pipe Net Connection to multilevel rpc client 
  con.pipe(db.createRpcStream()).pipe(con);

  return db;
}