Fix recursive inclusion of the toolbar page

This is most likely to happen during a 404 page which includes
the toolbar, which includes the toolbar which is a 404 page, which
includes...
Merge pull request #12 from ss23/recurse_fix

Fix recursive inclusion of the toolbar page
Change to using protocol-less URL where possible
Merge pull request #13 from ss23/protocol_fix

Change to using protocol-less URL where possible