The modal helper now accepts an animated: option

[knorrli]

At the moment, the modal template adds the fade class to every modal, which is responsible for animating the opening/closing of a modal. If you want this animation gone, you currently have to override bootstrap's fade css, or use some other workaround. To fix that, this PR adds an animated: modal option. If animated: false is passed, the fade class will not be added, which is what bootstrap suggests.

Please let me know what you think.