adds final file property
Merge pull request #9 from kotisdesign/feature-final-file

Feature final file
requires local testing to use a local Kotisauth app
Merge branch 'master' of github.com:kotisdesign/file-uploader
requires local testing to use a local Kotisauth app: updated
requires local testing to use a local Kotisauth app: updated
cleans up gemfile, retrieves roles from API
rubocopped files, styling changes/cleanup
removes incorrect user_info from view and callback
Merge pull request #10 from kotisdesign/misc-updates

Misc updates
fixes rubocop's incorrect suggestion on a render and return
adds integration tests for art files & includes fixes for failures