Style tweaks and cleanup to Mike's awesome work
Bump ruby version to 2.1.2

(Sorry everyone, but I need to do this since 2.1.0 doesn't compile on
Ubuntu 14.04, my dev environment)
Remove .env file from version control

Users should put their DATABASE_URL in there, but it will be different
for everyone so it shouldn't be checked into git.
Merge pull request #83 from ted27/merge_mikes_postgres_stuff

Merge Mike's postgres stuff
Add Database URL to app.rb
Add pie chart for contribution categories
Add non itmeized to the pie chart
Fix reference to GoogleCharts
Add large contirbutors chart