Upgrade jQuery to latest 1.x release

https://www.pivotaltracker.com/story/show/75501010 [Delivers #75501010]

Also fixes the final Javascript console warning:
https://www.pivotaltracker.com/story/show/74852520 [Delivers #74852520]
Merge pull request #28 from sealevelresearch/upgrade-jquery

Upgrade jQuery to latest 1.x release