code: function init(cb) {
  	Storage.read(goblin.config.files.db, {}, function(err, db) {
  		if (err) {
  			return cb(err);
  		}
  
  		goblin.db = db;
  		cb();
  	})
  }
docs: Initialize database.
  
  @param {function} cb Callback function called when the database is initialized,
  meaning the functions have been restored from file. The function
  gets a parameter which is an error message if any.
  @returns {void}