Disable submit button after submit

Background

It is currently possible to submit twice, when the server response is slow. It is better to disable the submit button after submit, to prevent a double submit / improve user experience.

Requirements

• For all (default) submit buttons in Integrated
• After click submit: disable the submit button and add a spinner animation
• Use the disabled / animation from "Demo 6" on http://jeremypeters.github.io/ng-bs-animated-button/ (skip the text change and the smile)