Revert "Update atom.xml to make GH pages happy"

This reverts commit 654913da39d2106bd3e3fe8755474a12553fce41.
Revert "Publish to gh-pages branch"

This reverts commit 968e2b2b79994dd6388e76b17fec3a6cc223a1a5, reversing
changes made to d2520c38bb9a498123c28a8c524026008380507a.