[fix bug 918260] Update bedrock jQuery to version 1.11

This PR updates the remaining parts of Bedrock to jQuery 1.11 :fireworks: 

I've tested as many pages as I can using the [jQuery Migrate plugin](https://github.com/jquery/jquery-migrate/), and made alterations where needed. I've tested the Firefox app pages the most thoroughly, and only a few key pages needed updating. I've also gone through many of the pages using the `common` bundles and all seem ok. Some further testing would be super helpful :smile: 

I also need to find out if the `/plugincheck` page JS uses it's own copy of jQuery (I [believe it does](https://github.com/ossreleasefeed/Perfidies-of-the-Web/blob/master/perfidies.js#L822), but we need to be sure). I see some of the code in `plugincheck.min.js` uses `$.browser`, which is deprecated, but the page seems to work fine when testing `1.11` so maybe we're ok.