Proposal for RemItems Command (Admins)

Should make it easier when someone overloads the server with an ovely successful sugar cane farm or similar.

For the whole world remove items part of the command (/remitems all) it give all online players 60 seconds warning
The command also has support for a radius, (/remitems <int>) but i have made it capped at 500, change it if you see fit

So yeah, is it worth adding?