Merge pull request #87 from keaty/master

Adding .pngs to Heroku with config.assets.compile = true
Merge pull request #88 from keaty/master

edited to production.rb to add config.assets.compile = true
Update README.md
Update README.md
Update README.md
Added encoding to NytimesMessenger service
Update README.md
Update README.md
added link to Circle CI
Merge pull request #90 from keaty/master

front end UI features
margin and padding edits

* edited styles on view company's subsidiaries button
* edited padding on expanded company descriptions