Merge pull request #20 from paulcpederson/master

Map styles, UI Improvements
Fix up paths in README.
Implement the cafes import.
Add boto and django-ses to requirements file.
Update settings.py with custom mail backend.
Add author meta tags to site base template.
Update admin email in settings.py.
Update humans.txt file.
Add an Ajax view to handle contact form POST requests. Closes #15.
Add detail views for roasters and cafes; include stub view templates. Closes #16.