Render Phame templates in the expected order
Summary: Currently, content runs before header. Instead, run header, content, footer. This makes it easier to use header.php for includes, for Phacility.
Test Plan: Made Phacility blog work better, see next diff.
Reviewers: chad
Reviewed By: chad
Subscribers: epriestley
Differential Revision: https://secure.phabricator.com/D10067