Add pip `requirements.txt`.
SEOmoz => Moz.
Merge pull request #10 from seomoz/cbf/add-requirements

Add pip `requirements.txt`.
Merge pull request #11 from seomoz/cbf/seomoz-to-moz

SEOmoz => Moz.
Switch Travis to use requirements.txt for install step.
Drop quotes from YAML, since they aren't needed.
Merge pull request #12 from seomoz/switch-to-requirements-txt

Switch Travis to use requirements.txt for install step.
Merge pull request #1 from seomoz/master

latest from upstream