Jetpack: Transition to a body.jetpack-pagestyles for styling of subpages.  Much more efficient than wildcard selectors on the class attribute.  Add in a filter to add it when needed.


git-svn-id: https://plugins.svn.wordpress.org/jetpack/trunk@798763 b8457f37-d9ea-0310-8a92-e5e31aec5664