DPVP: Rethink zone IDs/names

[HunterZ]

Zone IDs are supposed to be unique identifiers, but DPVP allows these to be optionally controlled in the config file, which sickness0666 pointed out is problematic in the case of monuments that can have multiple instances on the same map.

Meanwhile, all zones are named simply "DynamicPVP", which HoRRoRiST pointed out is not very helpful if you're working directly with Zone Manager etc.

I'm thinking something like this might be better:

• Zone Name: Make this something like "DynamicPVP:[:location|parent]", and possibly allow it to be configurable (which precludes differentiation)
• Zone ID: Remove configurability, and make this be "DynamicPVP:". Ensure that it is globally unique. Use this for orphaned zone cleanup instead of using the zone name

Would need to migrate the zone ID config setting to zone name, and hope that people don't complain too much.

[HunterZ]

Update: HoRRoRiST pointed out that Zone Command by Misticos triggers on Zone ID. I've asked misticos if it could be updated to support triggering on zone names; they agreed to look into it, but pointed out that this is nontrivial because Zone Manager only provides ID-based querying.

I think making Zone IDs an internal thing and giving players the ability to specify custom zone names makes more sense, because zone names don't have to be unique. This means that Zone Command could actually have one rule that covers a group of zones with the same name (e.g. all gas stations, or even all PVP monuments).