Fix length parsing and encode_xml() with non-string types.

exec/load/podcast_routines.js

@@ -71,7 +71,7 @@ function podcast_get_enclosure_info(enc)
 		log("HEAD request of "+enc.url+" did not return either Content-Type or Content-Length");
 		return false;
 	}
-	enc.length = hdrs['Content-Length'][0] + 0;
+	enc.length = parseInt(hdrs['Content-Length'][0], 10);
 	enc.type = hdrs['Content-Type'][0].replace(/^\s*(.*?)\s*/, "$1");
 	return true;
 }

exec/podcast.js

@@ -14,6 +14,7 @@ var item_info;
 
 function encode_xml(str)
 {
+	str = str.toString();
 	str=str.replace(/&/g, '&');
 	str=str.replace(/</g, '&lt;');
 	str=str.replace(/>/g, '&gt;');