JDF-320 Upgrade jQuery to 1.9.1 and jQuery Mobile to 1.3.1.

In addition to updating the versions, Twitter Bootstrap was also updated to 2.3.1 since lower versions are incompatible with jQuery 1.9, due to reliance on $.browser.

jQuery 1.9 no longer support CSS pseudo selectors like :valid and :invalid, requiring use of querySelectorAll for detecting valid/invalid HTML5 form input fields. Regexp based validation is used as a fallback, especially for IE9.