Added call to remove() after event fires to clean up data as per discussion at #12379

fires closed.bs.alert *after* element is removed from DOM.
Previously it fired while the element was still attached.

#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

- Implements new format "Copyright 2011-xxxx Twitter, Inc.", which resonates well with our History page and more accurately reflects the copyright status of the repo
- grunt dist to update all the files

Removes `window.jQuery` in favor of `jQuery`, fixes #10038