- Fixed an error caused by lightbox when checking for href in attributes in _constrainLink and the a element doesn’t have a href (e.g. the confirmation links in the ”Empty Book Bag” button).

- Fixed an error caused by lightbox when checking for href in attributes in _constrainLink and the a element doesn’t have a href (e.g. the confirmation links in the ”Empty Book Bag” button).

- This allows us to lightbox-ignore some messages, which gives better control over when the lightbox pops up in response to a flash message vs. causing a full-page reload.

- Use form="id" attribute to simplify form markup
- Includes polyfill for legacy browsers

- avoids the possibility of calling handleUpdate for the modal before it's actually shown.

Added the possibility to define bootstrap modal settings for the lightbox with data attributes. (#835)

- Load Google library once per page, instead of once per Captcha
- Allows proper functioning of multiple embedded ReCaptchas in a single set of search results

- Error messages now included in pop up.
- Pass form element to data-lightbox-onclose callback.

After exploring new options to make login detection more robust, this is still the best system. Will continue to investigate.

Conflicts:
	themes/bootstrap3/js/cart.js
	themes/bootstrap3/js/lightbox.js

Conflicts:
	themes/bootstrap3/js/cart.js
	themes/bootstrap3/js/lightbox.js
	themes/bootstrap3/js/openurl.js

Conflicts:
	themes/bootstrap3/js/lightbox.js