@neggro changes
changed local variables from some_case to camelCase Fixes #3
updated database example
changed attribute name of inputs
fix issue with twitter and facebook login
changed node version on engine property for heroku
add the refuel as dependency to the Refuel.Edit controller
commented code to insert the fuels
basic validation to refuel form
Added Fuels section for my account, controller, route and view
added contruibutors to README
improved subtitle Contributors into README
social icons in login page
fix conflicts