Better UI for viewing gists

[simeonwillbanks]

• Add a title to Gist
  • Update search data to have gist titles
  • Add specs for gist titles
• Add default title and matching regex with public interfaces to Gist
• Add upgrade:gists_by_setting_titles to set titles for all gists
• Refactor MyGists::Refresh to fetch and save a gist title
• Refactor GistDecorator
  • Remove public and github icons from #icons
  • Add #title which links gist back to GitHub

  • description wrapped in a p tag

• Views now list gists as an unordered list
  • Refactor styles to match new markup
• Use an unordered list to render secret and starred gist on help page
• Add .tag class which extends Bootstrap .text-success
  • All tags look the same throughout the entire site
• Update README
• Update LICENSE