remove 'projection' member from Layer. keep single instance in map

git-svn-id: http://svn.openlayers.org/trunk/openlayers@496 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Layer.js

@@ -11,9 +11,6 @@ OpenLayers.Layer.prototype = {
     /** This variable is set in map.addLayer, not within the layer itself
     * @type OpenLayers.Map */
     map: null,
-
-    // str -- projection for use in WFS, WMS, etc.
-    projection: null,
     
     /**
     * @param {str} name

lib/OpenLayers/Layer/Grid.js

@@ -220,7 +220,7 @@ OpenLayers.Layer.Grid.prototype = Object.extend( new OpenLayers.Layer(), {
     */
     getFullRequestString:function(params) {
         var requestString = "";        
-        this.params.SRS = this.projection;
+        this.params.SRS = this.map.projection;
         // concat tile params with layer params and convert to string
         var allParams = Object.extend(params, this.params);
         var paramsString = OpenLayers.Util.getParameterString(allParams);

lib/OpenLayers/Map.js

@@ -130,7 +130,6 @@ OpenLayers.Map.prototype = {
     */    
     addLayer: function (layer, zIndex) {
         layer.map = this;
-        layer.projection = this.projection;
         layer.div.style.overflow = "";
         if (zIndex) {
             layer.div.style.zIndex = zIndex;
@@ -387,6 +386,10 @@ OpenLayers.Map.prototype = {
         this.events.triggerEvent("moveend");
     },
     
+    /**
+     * ZOOM TO BOUNDS FUNCTION
+     */
+
     moveToNewExtent: function (zoomChanged) {
         if (zoomChanged != null) { // reset the layerContainerDiv's location
             this.layerContainerDiv.style.left = "0px";