Start rebuilding Admin

- Add Basic styles for the admin.
- Add tabs in Admin pages
- Solve some url issues - for instance: Rails.application.routes.url_helpers
- Add Best in Place functionality - changing content inline
- Add Sort table JS module
- Add missing Views for admin tags
- Migrate from bootstrap to foundation in: Dashboard, Projects listing and Backer listing

Worked: 3:30h
Total: 10:30h