Update .sdkconfig.js

plugins/c9.metrics/mock_metrics.js

@@ -0,0 +1,19 @@
+/**
+ * Dummy implementation of metrics.
+ */
+"use strict";
+
+plugin.consumes = [];
+plugin.provides = ["metrics"];
+
+module.exports = plugin;
+
+function plugin(options, imports, register) {
+    
+     register(null, {
+        "metrics": {
+            log: function() {},
+            increment: function() {}
+        }
+    });
+}