Add basic Comet bidding to auction index page
Fix notices behavior for auction bidding, only user who bid get text notice about this action, another have time update through Comet
Add Comet price updating. Add Comet support for show auction page. Fix error with flashes
Add bid validations
Refactor bid workflow, make it more CRUD
Add sorted scope for bids
Refactor validation messages for bid creation
Fix Time.now issues in acceptance specs with timecop gem
Fix fractionality validator (integer values are valid)
Fix issue with bid button redirect absence on AJAX 401 error