code: function kill(noMsg, signal) {
  	if (!instance)
  		return false;
  
  	try {
  		if (signal)
  			instance.kill(signal);
  		else
  			process.kill(instance.pid);
  		
  		if ((noMsg || false) !== true)
  			logger.log('Killed', clc.green(script));
  	} catch (ex) {
  		// Process was already dead.
  		return false;
  	} 
  	
  	return true;
  }
docs: Kills the parser.
  @param {Boolean} [noMsg] - indicates if no message should be written to the
  log. Defaults to false.
  @param {String} [signal] - indicates which kill signal that sould be sent
  toLowerCase the child process (only applicable on Linux). Defaults to null.
  @return {Bool} - true if the process was killed; otherwise false.