replaced my debug lib with standard one

lib/log4js.js

@@ -46,7 +46,7 @@
  * @static
  * Website: http://log4js.berlios.de
  */
-var debug = require('./debug')('core')
+var debug = require('debug')('log4js:core')
 , fs = require('fs')
 , cluster = require('cluster')
 , util = require('util')
@@ -90,10 +90,10 @@ function deserialise(serialised) {
 //in a multi-process node environment, worker loggers will use
 //process.send
 cluster.on('fork', function(worker) {
-  debug('listening to worker: ' + worker);
+  debug('listening to worker: ', worker);
   worker.on('message', function(message) {
     if (message.type && message.type === '::log4js-message') {
-      debug("received message: " + message.event);
+      debug("received message: ", message.event);
       dispatch(deserialise(message.event));
     }
   });
@@ -106,7 +106,7 @@ cluster.on('fork', function(worker) {
  * @static
  */
 function getLogger (category) {
-  debug("getLogger(" + category + ")");
+  debug("getLogger(", category, ")");
 
   return new Logger(
     cluster.isMaster ? dispatch : workerDispatch, 
@@ -123,9 +123,9 @@ function workerDispatch(event) {
  * This would be a good place to implement category hierarchies/wildcards, etc
  */
 function dispatch(event) {
-  debug("event is " + util.inspect(event));
+  debug("event is ", event);
   var category = categories[event.category] || categories.default;
-  debug("category.level[" + category.level + "] <= " + event.level + " ? " + category.level.isLessThanOrEqualTo(event.level));
+  debug("category.level[", category.level, "] <= ", event.level, " ? ", category.level.isLessThanOrEqualTo(event.level));
 
   if (category.level.isLessThanOrEqualTo(event.level)) {
     category.appenders.forEach(function(appender) {
@@ -135,17 +135,24 @@ function dispatch(event) {
 }
 
 function load(file) {
+  debug("loading ", file);
   return JSON.parse(fs.readFileSync(file, "utf-8"));
 }
 
 function configure(configurationFileOrObject) {
-  var filename, config = configurationFileOrObject || process.env.LOG4JS_CONFIG;
-  
+  debug("configure(", configurationFileOrObject, ")");
+  debug("process.env.LOG4JS_CONFIG = ", process.env.LOG4JS_CONFIG);
+
+  var filename, config = process.env.LOG4JS_CONFIG || configurationFileOrObject;
+
+  debug("config ", config);
+
   if (!config || !(typeof config === 'string' || typeof config === 'object')) {
     throw new Error("You must specify configuration as an object or a filename.");
   }
 
   if (typeof config === 'string') {
+    debug("config is string");
     filename = config;
     config = load(filename);
   }