Add cancan. Add create idea and idea preview
Add responsive layout to ideas#new
Add deadline validation to idea
Add a scenario for a problem closed for contributions
Fix new idea link
Copy changes
Add accepted_at and rejected_at to contributions. Add view pending contributions feature
Add feature view_all_my_pending_contributions.feature
Change pending contributions counter layout
Change pending contributions layout
Apply new layout to ideas#new
Change layout
Accept a contribution
Add style to the accept button in contributions#pending_contributions
Reject a contribution
Change layout of ideas#new
Apply responsive design to contributions#pending_contributions
Add share message for new ideas