Removed Source Dialog plugin from required in Code Snippet sample.
Changelog entry.
Merge branch 't/11859'
Changed minimum width from 0px to 1px.
Added comment.
Changelog entry.
Merge branch 't/11626'
Made dom.element#addClass chainable.
Changelog entry.
Merge branch 't/11872'
ProtectedSource markup should not be applied to elements like title, textarea, iframe.