fix(shimmer): change namespace to RS

Author: gergelyke

lib/wraps/shimmer.js

@@ -48,13 +48,13 @@ function wrap(nodule, noduleName, methods, wrapper) {
     if (!original) {
       return console.log('%s not defined, so not wrapping.', fqmn);
     }
-    if (original.__NR_unwrap) {
+    if (original.__RS_unwrap) {
       return console.log('%s already wrapped by agent.', fqmn);
     }
 
     var wrapped = wrapper(original, method);
-    wrapped.__NR_original = original;
-    wrapped.__NR_unwrap = function __NR_unwrap() {
+    wrapped.__RS_original = original;
+    wrapped.__RS_unwrap = function __RS_unwrap() {
       nodule[method] = original;
       console.log('Removed instrumentation from %s.', fqmn);
     };
@@ -81,11 +81,11 @@ function unwrap(nodule, noduleName, method) {
   if (!wrapped) {
     return;
   }
-  if (!wrapped.__NR_unwrap) {
+  if (!wrapped.__RS_unwrap) {
     return;
   }
 
-  wrapped.__NR_unwrap();
+  wrapped.__RS_unwrap();
 }
 
 shimmer.wrap = wrap;