- Support specifying URL in loginParameters for connecting to OpenSim

- Patch some miscellaneous OpenSim related glitches
- Add waitForRegionHandshake function
- Add a concurrent promise queue
- Fix xml writing of Vector3s
- Fix asset downloading on grids without HTTP assets
- Fix buildObject to properly orientate prims
- Wrangled with CreateSelected all day and it turned out to be an OpenSim bug
- LinkFrom function for faster linking
- Updated LLSD library to fix LLMesh decoding

lib/classes/Vector3.ts

@@ -14,9 +14,9 @@ export class Vector3 extends vec3
         {
             v = Vector3.getZero();
         }
-        //doc.ele('X', v.x);
-        //doc.ele('Y', v.y);
-        //doc.ele('Z', v.z);
+        doc.ele('X', v.x);
+        doc.ele('Y', v.y);
+        doc.ele('Z', v.z);
     }
 
     static fromXMLJS(obj: any, param: string): Vector3 | false