Merge pull request #12 from samuelralak/feature/4-user-authentication

Feature/4 user authentication
added twitter omniauth environment variables for production/staging
Merge branch 'develop' of https://github.com/samuelralak/lofelofe into develop
serving all assets in production
applied specific helpers to css
precompile ALL assets on production
installed aws service gems
created a staging environment
set config varibales for s3 in heroku