upgrade angular-ui-bootstrap to at least 1.3.3

We're currently using 1.2.4 of angular-ui-bootstrap. The general reason for upgrading to 1.3.3 is just the normal keeping on top of things. However, there's also a specific motivation: taking advantage of uib-tab's new ability to use arbitrary (and hopefully more semantic) strings as indexes rather than just integers.

Here are the list of potentially relevant breaking changes gleaned from the release notes between 1.2.4 and 1.3.3:

* timepicker: This removes automatic padding done by the timepicker when the input is empty - if that behavior is desired, write a custom directive implementing it
* dropdown: The dropdown no longer will remain open on $locationChangeSuccess with autoclose set to disabled. Implement this logic inside app along with usage of isOpen two-way binding if this functionality is desired.
* datepickerPopup: The datepicker popup is no longer a part of the datepicker module, but now a part of the datepickerPopup module. Please change code accordingly if including specific modules
* datepicker: This removes inline datepicker attribute support and attribute pass-throughs in the popup
* dropdown: Stops propagation of keydown event when escape key is pressed. Removes keydown event from the document and moves it to the dropdown element.
* modal: Since this adds support for $resolve being exposed on $scope, it could potentially overwrite any pre-existing usage of it - this is an unlikely scenario, but marked as a breaking change in case this key is being used

As far as I can tell, there's major nothing stopping us from going past 1.3.3 and up to 2.5.0+, just a lot more breaking changes to double-check.

Evergreen master