Customizing all form response messages

Since Blocs 3 it is now possible to add your own custom text to the “Required msg” fields for form input fields. So if a user doesn’t fill out the email field correctly you can add show own message when this happens.

BUT … there are still some form responses that I can’t seem to change:

novalidate data-success-msg="Your message has been sent." data-fail-msg="Sorry it seems that our mail server is not responding, Sorry for the inconvenience!

<button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button><strong>Your message has been sent.</strong>

I searched through the both javascript files (formHandler.js & jqBootstrapValidation.js) and found nothing that could help me.

i also checked the form php in the includes folder with no results.