Merge pull request #14 from calblueprint/vincent-admin-teacher-model

Vincent admin teacher model
Use dotenv gem
Dotenv should go before other gems, update rails version since security issues
Ignore .env file
Use env variable in production and hard-coded token in dev/test
Merge pull request #16 from calblueprint/hide-secrets

Hide secrets, Update Rails Version
google analytics set up
added d3 gem
No version for newrelic
Merge pull request #17 from calblueprint/vincent-google-analytics

Vincent google analytics
add student.rb
take courses out of schema
Merge branch 'class-model' of https://github.com/calblueprint/roots-of-success into class-model