Making buttons work

Thanks @gregersrygg for testing. With this change, zoom and other buttons
(e.g. editing toolbar) work in touch mode.

lib/OpenLayers/Events.js

@@ -1085,8 +1085,6 @@ OpenLayers.Events = OpenLayers.Class({
             }
 
             e.touches = touches.slice();
-            e.changedTouches = [e];
-
             handler(e);
         };
 
@@ -1122,6 +1120,11 @@ OpenLayers.Events = OpenLayers.Class({
                 return;
             }
 
+            if (touches.length == 1 && touches[0].pageX == e.pageX &&
+                    touches[0].pageY == e.pageY) {
+                // don't trigger event when pointer has not moved
+                return;
+            }
             for (var i = 0; i < touches.length; i++) {
                 if (touches[i].pointerId == e.pointerId) {
                     touches[i] = e;
@@ -1130,9 +1133,6 @@ OpenLayers.Events = OpenLayers.Class({
             }
 
             e.touches = touches.slice();
-            e.changedTouches = [e];
-            e.type = type;
-
             handler(e);
         };
 
@@ -1158,11 +1158,8 @@ OpenLayers.Events = OpenLayers.Class({
                     break;
                 }
             }
-
+            
             e.touches = touches.slice();
-            e.changedTouches = [e];
-            e.type = type;
-
             handler(e);
         };