Addressing feedback from PR-324

This should address all of the feedback on GitHub and on list except:
-Feedback on consolidating tests like capture (Scott volunteered to do
this after other feedback is addressed)
-Feedback on the latest touch-action test cases
(https://github.com/InternetExplorer/web-platform-tests/commit/886568a445cded3b5aa01f0c8befb48e0534fed6)

We'll address the touch-action feedback soon.
Whitespace, indentions, and matching tag fixups