Remove background coloring for footer

- I think it looks nicer without it, plus visual bugs are fixed

Closes #122
4 jobs for 112-footer-fix in 1 minute and 40 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #2582
Go-py2.7

00:01:38

passed #2583
Go-py3.4

00:01:39

passed #2584
Go-py3.5

00:01:40

passed #2585
Go-py3.6

00:01:38