add a clear license for the TS
remove links to external media across TS (except examples)
actual license
Merge pull request #121 from w3c/license

add a clear license for the TS
remove examples as per discussion
Merge pull request #123 from w3c/drop-examples

remove examples as per discussion
Merge pull request #122 from w3c/remove-external-media

remove links to external media across TS (except examples)
shadow-dom: Remove .gitattributes.

This change removes the .gitattributes file, based on the discussion at
<https://github.com/w3c/web-platform-tests/pull/120>.
Merge pull request #129 from yutak/shadow-dom/remove-gitattributes

shadow-dom: Remove .gitattributes.
Fix typo.