Add the new number of crimes in the category to the result message
When you first run it the script will ask you for an API key (that can get the crime stats, so public is enough)
Uses 1 API call per crime. If you re-click on a crime within 3s, then it uses a cache, so clicking 50 2-nerve crimes in quick succession will only use 1 API call. But only do that to get the merit!
Only works in Firefox, on Linux. When I test with Chrome, I end up being targeted by the bot hunter, so I don't think I will investigate too much. As they say: "patches welcome".
