clean up markup on release page
improve position of right align button
prevent syntax highlighter from overriding line height
only collapse short list items
force pod inner element margins inside pod block

With margin collapsing, the first element's margin can apply outside of
the main pod block, changing the alignment of the left border and right
floated TOC.  Applying top padding forces the margin to apply to the
inner element and not the pod block itself.  Using 0.1px means the
padding doesn't have to actually take up any space.
handle right aligned wide TOCs that can't be wrapped
fix release controller test
set cookie only if there is something to store
fix session test for new cookie handling