Fixes #1476 new line character issue in workflow

SaveWorkflow.php inside process function it will call SaveTasks() function in this function the task will be saved in were it will use getRaw(task) function it will return raw text here the new line character will not working because it will store input as raw text in database table 

the getRaw() function which will convert the \n new line special character into raw text character that why it not taking special character