Create project document policy
Migrate project documents controller to pundit
Remove project document from ability
Merge pull request #161 from neighborly/jl-pundit-project-documents

Migrate Project Documents to Pundit
Import reward policy from catarse
Add channels rights to reward policy spec
Migrate rewards controller to pundit
Migrate reward views to use pundit
Remove reward abilities
Refactor reward polity spec to use expect
Remove resource.new_record? from reward form