- wrap json_encode in Util::toJson to always encode with the same flags

- implemented secondary tooltips with spawnPoints
- merged Mapper.js back into global.js
 * fixed wrong id for Nexus Instance
 * the ToC Dungeon no longer has a second layer
- fixed displaying waypoints as spawns
- images in pageText are now PNG instead of JPG to accomodate for transparency

datasets/zones

@@ -37,7 +37,6 @@ Mapper.multiLevelZones = {
 	4494: ['4494-1', '4494-2'],
 	4714: ['4714-1', '4714_1', '4714_2', '4714_3'],
 	4722: ['4722-1', '4722-2'],
-	4723: ['4723-1', '4723-2'],
 	4812: ['4812-1', '4812-2', '4812-3', '4812-4', '4812-5', '4812-6', '4812-7', '4812-8'],
 };