New features & optimization

1.1.0 (07/04/2014):
- Added item "Waypoint Beacon"; recipe is a compass in the center of a
workbench surrounded by redstone
Players with the permission "wp.beacon.use" can right-click while
holding it to open directory
"wp.beacon.server" will allow players to see server-defined waypoints
with the beacon
"wp.beacon.unlimited" will prevent the beacon from being consumed on use
This feature can be disabled in the config.yml
- Added discovery mode (requires Vault)
"/wp discover" will toggle discovery mode for selected waypoint
Discovery mode is disabled by default
Accessing waypoints in discovery mode will grant players the access
permission to it
- Instead of scaling and being capped at displaying 54 waypoints,
directory is now a fixed size
Added paging and navigation buttons in directory to allow for an
unlimited number of waypoints