Improve the footer layout for the chameleon theme
    
    The chameleon theme's footer was ripped from the older version of
    the footer for the pagure.io theme. It didn't quite make sense there.
    
    This new version is more understandable and renders well even when
    custom versions are injected in for snapshot builds.
    
    Signed-off-by: Neal Gompa <ngompa13@gmail.com>