Added basic set of HTML Imports test.
Moved metadata from JS to link element
Get rid of bad self-closing tags.
Merged redundant assert sections to titles.
First batch of i18n tests: translate mode
Updated translate attribute tests
Second update of translate attribute tests
shadow-dom: Update a test that checks invariants across distribution.
add blob determing encoding
fix the link
remove unreferenced file Blob.js
moved the dictionary
move the dictionary
remove reductant files
Add media resource selection tests
Remove <base> elements
Add WIP tests for HTML's resolving URLs
Use add_cleanup
Test the ping attribute, plus some minor fixes
Test meta refresh