New OpenLayers.Projection.defaults property.

This allows us to simplify the map and layer configuration, because now the projection also defines defaults for maxExtent, maxResolution and units.
This change also adds transforms for SRS aliases for EPSG:4326 and centralizes axis order information in OpenLayers.Projection.defaults.

tests/Control/WMSGetFeatureInfo.html

@@ -290,19 +290,19 @@
     function test_mixedParams(t) {
         t.plan(5);
         var map = new OpenLayers.Map("map", {
-            getExtent: function() {return(new OpenLayers.Bounds(-180,-90,180,90));}
-            }
-        );
+            getExtent: function() {return(new OpenLayers.Bounds(-180,-90,180,90));},
+            getProjectionObject: function() {return new OpenLayers.Projection("EPSG:4326");}
+        });
 
         var a = new OpenLayers.Layer.WMS("dummy","http://localhost/wms", {
             layers: "a,b,c,d",
             styles: "a,b,c,d"
-        });
+        }, {map: map});
 
         var b = new OpenLayers.Layer.WMS("dummy","http://localhost/wms", {
             layers: ["a","b","c","d"],
             styles: ["a","b","c","d"]
-        });
+        }, {map: map});
 
         var c = new OpenLayers.Layer.WMS("dummy","http://localhost/wms", {
             layers: ["a","b","c","d"]
@@ -310,13 +310,13 @@
 
         var d = new OpenLayers.Layer.WMS("dummy","http://localhost/wms", {
             layers: "a,b,c,d"
-        });
+        }, {map: map});
 
         var click = new OpenLayers.Control.WMSGetFeatureInfo({
             featureType: 'type',
             featureNS: 'ns',
             layers: [a, b, c, d]
-        });
+        }, {map: map});
 
         map.addControl(click);
 
@@ -399,6 +399,7 @@
         var c = new OpenLayers.Layer.WMS(
             null, ["http://c.mirror/wms", "http://d.mirror/wms"], {layers: "c"}
         );
+        map.addLayers([a, b, c]);
 
         var control = new OpenLayers.Control.WMSGetFeatureInfo({
             url: "http://host/wms",