Feature Request: Add animation to modal when its backdrop is static.

Created by: webframing

When the modal has the property:

{backdrop: 'static', keyboard: false}

Or when it has the attributes:

data-backdrop="static" data-keyboard="false"

Obviously, it would not be close if the user tries to click outside of it and also using esc key. Then it should show the user that anything is important in modal (user needs to check modal) by showing any animation like scale to get the user attention there. Like the chrome's clear browser data modal: