Small UI fixes and adds the query directive to the triage view.

Next will be changes to the backend to show better counts on all pages.

BUG=skia:2930

Review URL: https://codereview.chromium.org/747473002
Fix skiaversion generation

Used a Python script for simplicity.

BUG=skia:

Review URL: https://codereview.chromium.org/747473003