Add list view ux pattern

This PR contains the new List View Pattern post.

Take a look at the List View example and let me know any suggestions or changes.

I've split out all the jQuery for the popovers and such that show up on the UX Patterns examples into their own files.

I also removed the original (official) JS for dropdowns and tooltips because they didn't play well with the list table.  Ask me about that if you want. :)