When a User is logged in, there's a blank line in the 
Administration block of the LHS page furniture, below the 
Administration heading and above the User list.

This is because the "page" template applies a 
tal:condition to the <a href="home?template=classlist"> 
but not to the following <br>.

Fix by wrapping a <tal:block> condition around both <a> 
and <br> elements.

Raised on 0.5.x, but appears to be true also in 0.6.0b3 
demo.