Updated Bone doc

docs/api/objects/Bone.html

@@ -37,6 +37,17 @@
 		<h2>Properties</h2>
 		<div>See the base [page:Object3D] class for common properties.</div>
 
+		<h3>[property:Boolean isBone]</h3>
+		<div>
+			Used to check whether this or derived classes are bones. Default is *true*.<br /><br />
+
+			You should not change this, as it used internally for optimisation.
+		</div>
+
+
+		<h3>[property:String type]</h3>
+		<div>Set to 'Bone', this can be used to find all Bones in a scene.</div>
+
 
 		<h2>Methods</h2>
 		<div>See the base [page:Object3D] class for common methods.</div>