Add to_i for params[:id]
Add settling field to bills
Add numericality validations
Add validations for settling
Add settle_user route
Add settle link to owing users
Add Users#settle action
Add Bill::create_settle
Change name of split validation
Change links to buttons
Add bang
Fix #users_with_outstanding_balance
Fix default_settling and one_split validations
Restrict bills routes
Add debtor_cant_be_same_as_bill_owner validation