Adding logging & metric recording configuration via settings

settings.js

@@ -132,6 +132,18 @@ module.exports = {
         // os:require('os'),
         // bonescript:require('bonescript'),
         // arduino:require('duino')
-    }
+    },
+
+    // Level of logging to be recorded. Options are: 
+    // fatal - only those errors which make the application unusable should be recorded
+    // error - record errors which are deemed fatal for a particular request + fatal errors 
+    // warn - record problems which are non fatal + errors + fatal errors
+    // info - record information about the general running of the application + warn + error + fatal errors
+    // debug - record information which is more verbose than info + info + warn + error + fatal errors
+    // trace - record very detailed logging + debug + info + warn + error + fatal errors
+    logLevel: "info",
+        
+    // Whether metrics are reported
+    metricsOn: false    
 
 }