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></ngompa13@gmail.com>