Stolen Bikes #192
Description
When a bike gets stolen, we offer a new rental for a £0 deposit. In this case, the previous contract should be marked as stolen, and a crime number noted. We need an additional bool field and a string field for this.
The stolen flag should also be factored into the status of the contract in stats and contract tables.
The flag can also be un-set when the bike gets found.
Finding bikes by the crime number could be a useful feature as well
An email should be sent when a crime report is added or closed.