* Add classes like `.site` and `.site-content` in addition to the set of IDs already present, making things much better for child themes to have more than one generic element like `nav` inside the content container.
* Bump JS version after selector change.
* Move `image-attachment` to `post_class()` output
More exhaustive notes in the ticket on each id and class change.
git-svn-id: http://core.svn.wordpress.org/trunk@21404 1a063a9b-81f0-0310-95a4-ce76da25c4cd
* Allow image alignment to apply anywhere, not just entry content area
* Remove unneeded `hgroup` `header` and `nav` selectors
git-svn-id: http://core.svn.wordpress.org/trunk@21402 1a063a9b-81f0-0310-95a4-ce76da25c4cd