Support W3C Geo in Format.GeoRSS -- this.geons was referenced ,but never

defined. Add property and test. Reviewed by SDE (thx!), (See #1024) 


git-svn-id: http://svn.openlayers.org/trunk/openlayers@4769 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Format/GeoRSS.js

@@ -39,6 +39,13 @@ OpenLayers.Format.GeoRSS = OpenLayers.Class(OpenLayers.Format.XML, {
      */
     georssns: "http://www.georss.org/georss",
 
+    /**
+     * APIProperty: geons
+     * {String} W3C Geo namespace to use.  Defaults to
+     *     "http://www.w3.org/2003/01/geo/wgs84_pos#"
+     */
+    geons: "http://www.w3.org/2003/01/geo/wgs84_pos#",
+    
     /**
      * APIProperty: featureTitle
      * {String} Default title for features.  Defaults to "Untitled"

tests/Format/test_GeoRSS.html

@@ -26,6 +26,14 @@
         var data = parser.write([f]);
         t.eq(data, '<rss xmlns="http://backend.userland.com/rss2"><item><title></title><description></description><georss:line xmlns:georss="http://www.georss.org/georss">45.68 -111.04 45.68 -112.04</georss:line></item></rss>', 'GeoRSS serializes a line correctly');
     }
+    function test_Format_GeoRSS_w3cgeo(t) { 
+        t.plan(2);
+
+        var parser = new OpenLayers.Format.GeoRSS();
+        var data = parser.read('<rss xmlns="http://backend.userland.com/rss2" xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#"><item><geo:long>-1</geo:long><geo:lat>1</geo:long></item></rss>');
+        t.eq(features.geometry.x, "-1", "w3c geo x read correctly"); 
+        t.eq(features.geometry.y, "1", "w3c geo y read correctly"); 
+    }
     function test_Format_GeoRSS_roundtrip(t) {
         t.plan(input.length);
         var parser = new OpenLayers.Format.GeoRSS();