Merge pull request #60 from paulcpederson/master

mesh and more
changing about/add-a-roaster page transition
changing about/add-a-roaster page transition
Merge pull request #61 from paulcpederson/master

back button
fixing about and add-a-roaster pages and map filtering
fixing conflict in screen
tiny tweaks
back button
tweak to position of back button
adding page back functionality
working on about/add pages, form handling, filtering
merging from brandon
Merge pull request #63 from paulcpederson/brandon

brandon buttons
Update page title.
Update geopy.
Update to the V3 geocoder.
Update roaster model to include additional boolean fields.
adding logic to templating
Only geocode the first import pass.
Remove unique constraint on the name field for the Business model; add unique_slugify method.