Add splash page content, assets, and styling
Filter publishers by path
Move city backgrounds assets folder
Move assets for publisher and general icons
Move splash page image assets to new folder
Structure city config
Customize show page for each city
Sort out asset path issues
Dynamically generate list of cities on home page
Add background images
Link to home page from show page
Cleanup content_for
Add prompt option to list
Backout content_for and sinatra-contrib dependency
Map event key, address radius and event styling
WIP: disable subscribe buttons before user selects topic
Display message when user clicks on disabled subscribe buttons
Resolve merge conflict
Merge github.com:codeforamerica/citygram into many-cities
Merge branch 'many-cities' into ui-fixes