Devise demo set-up
refactored auth_callback action and created lib/support files
add devise initializer files
add graph gems and dependencies
add steam metadata and api functions
included EveSupport module
Moved api calls to lib
Add birth_date to user
Initial API structure at lib/steam_api
added heroes/items/modes to library
add helper library functions
add comments to api
add age method to user
add carrierwave and placeholder concern