respond to json in 'votes#create'
add TEDxSacramento logo to header in app layout
use thin for superior web server

install thin gem
add Bootstrap CSS to asset pipeline

remove CDN link for Bootstrap CSS from app layout
add unminified bootstrap.css file to assets directory
customize bootstrap styles in separate overrides file
require bootstrap & overrides files w/ directives in application.css manifest
adjust formatting of projects index view

increase padding, margins, font-size & -weight