Install "pg" gem for postgres support
Change production database settings to use postgres
Load config/secret_settings.yml in lib/secret_settings.rb
Disable http auth with "beta_protection: false" in secret_settings.yml
Send links with https in mail
Merge pull request #78 from karenc/postgres-support

Add postgres support and various fixes
Updated action_interceptor; fixed another error in secret_settings.rb
Updated action_interceptor
Fixed specs