Introduce debug instead of console.log

lib/rulesChecker.js

@@ -1,4 +1,5 @@
 var Q = require('q');
+var debug = require('debug')('ylt:ruleschecker');
 
 var RulesChecker = function() {
     'use strict';
@@ -8,6 +9,8 @@ var RulesChecker = function() {
         var results = {};
         var err = null;
 
+        debug('Starting checking rules');
+
         for (var metricName in policies) {
             var policy = policies[metricName];
 
@@ -38,9 +41,16 @@ var RulesChecker = function() {
                     rule.abnormalityScore = Math.min(Math.round(abnormalityScore), 0);
 
                     results[metricName] = rule;
+            
+            } else {
+
+                debug('Metric %s not found for tool %s', metricName, policy.tool);
+
             }
         }
 
+        debug('Rules checking finished');
+
         return results;
     };
 };