Is your feature request related to a problem? Please describe.
At present, the recipients of all alert messages are controlled by a single permission, prism.alerts. It could be useful if there were multiple permissions based on the types of alerts (ore, place, break, etc) as is done with the ignore permissions. This would allow alerts to be targeted to specific players.

Describe the solution you'd like
Permissions such as prism.alerts.ore, prism.alerts.use.place, etc.

Also, the config key prism.alerts.uses.ignore-staff is checked but never defined and does not appear in the default config file.

Describe alternatives you've considered
N/A

This bit of code is broken; the append doesn't happen. Can you tell me how to fix it?

EDIT: Yeah, that append just doesn't work. I figured out how to do without it. Also, the alert counting doesn't differentiate between items, so I'll fix that, too.