as universally approved on discussions on dev list, replace new Array() with []. all tests pass ff & ie6

git-svn-id: http://svn.openlayers.org/trunk/openlayers@3815 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Control/PanZoomBar.js

@@ -111,7 +111,7 @@ OpenLayers.Control.PanZoomBar = OpenLayers.Class(OpenLayers.Control.PanZoom, {
         px = this.position.clone();
 
         // place the controls
-        this.buttons = new Array();
+        this.buttons = [];
 
         var sz = new OpenLayers.Size(18,18);
         var centered = new OpenLayers.Pixel(px.x+sz.w/2, px.y);