View Instagram users' media aggregated by filter. Ruby/Sinatra API with Backbone frontend.

Setup:
-Using 'dotenv' plugin for configuration. Your .env file will need an Instagram developer API callback URL, client ID, and client secret.

// Sample .env
// CALLBACK_URL=http://localhost:4567/oauth/callback
// CLIENT_ID=######
// CLIENT_SECRET=#####

-Install Ruby and run 'bundle install' in the directory, and run the app with "rerun 'ruby app.rb'".