Close modals on clicking overlay. Restructured modal code to be a bit cleaner.
Updated styleguide modal example.
Only allow user to click overlay to close if modal has close button.
Adding visually-hidden helper class for HTML elements.
Only expose public API in NEUE.Modal.
Merge pull request #246 from DoSomething/helper-class--visually-hidden

Adding visually-hidden helper class for HTML elements.
Added isOpen method to public API.
Add hash to URL for modal and re-open if hash is present on load.
Prevent scrolling to top upon removing hash.
Adds a test form in second modal.
Merge pull request #247 from DoSomething/modal

Modal
Release v3.4.0