clean up whitespace in layout template

Change-Id: I9d24e773ca491b30d8bfb1ad8d2f457225b44dc3
Add Beaker SessionMiddleware

Change-Id: I74d48cf72ade4e35e4897e878febd54f199fba87
Use browser session to track pagination parameters

Change-Id: I77206ea7f75460870d22e5cc8814cc7560c8982b