Add debug and firebug javascript to all main templates

debug has flag to turn off all console.* methods
firebug has override if console.* are missing

www/layout/admin/default/javascript/firebug.js

@@ -0,0 +1,16 @@
+/* vim: set fileencoding=utf-8 expandtab! shiftwidth=2 : */
+/* modified version of firebugx.js which can cope with 
+ * firebug 1.2+ and the webkit console */
+
+var ConsoleSetup = function() {
+    if (!window.console)
+        window.console = {};
+
+    var names = ["log", "debug", "info", "warn", "error", "assert", "dir", "dirxml", "group", "groupEnd", "time", "timeEnd", "count", "trace", "profile", "profileEnd"];
+
+    for (var i = 0; i < names.length; ++i) {
+        if (!window.console[names[i]]) {
+            window.console[names[i]] = function() {}
+        }
+    }
+}();