Merge pull request #880 from onepercentclub/feature/BOOK-673

Payment validations BOOK-673
updated payment back button to load donation model
Remove debugger
Merge pull request #881 from onepercentclub/feature/fix-donation-action

Updated payment back button to load donation model
BOOK-673, checking creditcard length
Merge branch 'feature/BOOK-673' of github.com:onepercentclub/bluebottle into feature/BOOK-673

Conflicts:
	bluebottle/payments/static/js/bluebottle/payments/controllers.js
Merge branch 'feature/fund-loving-criminals' into feature/BOOK-673

Conflicts:
	bluebottle/payments/static/js/bluebottle/payments/controllers.js
BOOK-673, fixing cc validation