Slogan should be wrapped in something

Let's start with a p tag
Center text

With Bootstrap's alignment class: http://getbootstrap.com/css/#type-alignment
Update job posting text

Fixes #63
s/Follow Us Elsewhere/Follow Us/

Because symmetry
Last fix for #64
Merge branch 'master' of github.com:DCPython/dcpython-django
Call to action: learn about AWS
Revert "Call to action: learn about AWS"

This reverts commit 9ab06825d64664fc223cf6dc831c67914531e27b.
Call to action take 2: learn about AWS.
Smaller text