Better warp system

The warp system on the Creative server could use some improvements. Currently there's 1 global list, only staff can set warps and only staff can view the full list of warps because there is staffy stuff on the list. Some ideas from me personally:

1. Have different warp lists: public, per-player and some way for staff to share private warps.
2. Allow players to make their personal warps global, so anyone can warp to them.
3. Would be kinda cool if you could add tags, descriptions, etc. to warps, so players can easily search through the public warps list. Maybe with an inventory GUI.
4. Possibly move over Essentials homes to the per-player warps list.
5. Would be neat if you could display nearby warps in the world with particle beams or something, to avoid creating multiple warps to the same location.