#11464 - Fix JS noConflict mode - Refactor all plugins to use an internal reference to the jQuery plugin, because in noConflict mode you can never expect to be defined on the jQuery object

X-Ref: https://github.com/twbs/bootstrap/commit/8c9739d4773c268b114296d90e61b5f4e2932517

- Improve comments.
- Remove `transition.js` script load as `transition.js` unit test doesn't exist.

Also, use Google's CDN per #11369.

This reverts commit edb221a2.
Reverting due to broken JS unit tests.

Conflicts:
	docs/javascript.html

Let's not confuse the archaeologists & historians.