Remove the dependency on jquery

I did a spike on seeing if we could remove jquery as a dependency: https://github.com/bitovi/funcunit/tree/no-jq

It didn't quite succeed. Some of the issues I ran into:

* There are uses of .val() and .text(), etc. that we'd have to write our
own versions of.
* There are jqueryisms in the test and some dependencies on jquery-only
selectors.

Start with the linked no-jq spike branch and inventory the reported .val(), .text(), jQuery-only selectors, and test dependencies. Completion means removing the jQuery dependency while preserving the functional test suite, but the issue names no specific files or tests, so the implementation scope must first be mapped.

Written by the indexing model from the issue text.