Added Game Update loop step debugging - has proved utterly invaluable! Resolved camera jitter issues, gravity / downward force on tile/boundary issues and most tilemap collision issues.

src/core/World.js

@@ -143,6 +143,9 @@ Phaser.World.prototype.postUpdate = function () {
         }
         while (currentNode != this.game.stage._stage.last._iNext)
     }
+
+    this.camera.update();
+    
 }
 
 /**