Upgrade to jQuery 2.0

[bertpareyn]

#2720

• Upgrade jQuery 1.8.3 to 2.0.0
• Upgrade require 2.1.2 to 2.1.5 (Upgrade jQuery to 2.0.0 requirejs/require-jquery#9)
• Upgrade ba-bbq from 1.2.1 to 1.3 and remove legacy browser support (Remove legacy browser support cowboy/jquery-bbq#48)
• Remove legacy browser support from ba-hashchange (Remove legacy browser support cowboy/jquery-hashchange#31)

[nicolaasmatthijs]

Because of the upcoming History.js work, the changes to ba-bbq and hashchange can be removed from this PR.

[bertpareyn]

I can undo the changes but be aware that this will cause 2 errors in the logs on every page. I'm not sure if the errors impact any other functionality.

[nicolaasmatthijs]

Yeah, I'm only going to merge this once the History.js work is merged

[bertpareyn]

Removed the ba-bbq and ba-hashchange changes. Ready for review

[nicolaasmatthijs]

Cool, once the History.js PR is in, this is good to be merged.

[nicolaasmatthijs]

Actually, it looks like require-jquery now officially exists for jQuery 2.0 as well (https://github.com/jrburke/require-jquery/blob/master/jquery-require-sample/webapp/scripts/require-jquery.js). I think we can bring in that one, as it looks like some additional fixes have been introduced as part of that work.

[nicolaasmatthijs]

Assigning back to @BP323 for following up on the last comment.

[bertpareyn]

It looks like he didn't merge my PR but copied it because the file is identical to the one I sent in this PR. I squashed the commits to make it cleaner though. Assigning back to @nicolaasmatthijs for review.

[nicolaasmatthijs]

Looks good. Merged.