Add pundit gem
Import application policy from catarse
Include pundit on application controller
Add pundit exeption handler
Create project policy
Import project policy spec from catarse
Refactor projects controller to use pundit
Add helper methods to application policy
Migrate project views to pundit
Remove projects ability
Add spec for organization model
Create more specs for project policy and some refactoring
Use pundit on create reward button
Add custom error message for pundit
Add pundit to Gemfile.lock
Fix typo on policies
Use described_class on project policy spec
Rename auth_error to deny_access
Refactor projects controller spec to be compatible with Rspec 3
Refactor projects controller to use pundit