Merge pull request +10964 from c9/reduce-uid-checks

[not trivial] Reduces the uid checks - less warnings

node_modules/c9/skip-analytics.js

@@ -12,7 +12,9 @@ define(function(require, exports, module) {
 
     function skipAnalytics(user) {
         if (!user) return true;
-        if (user.id === -1 || user.uid === -1) return true;   
+        if (user.id === -1) return true;
+
+        if (!user.id && user.uid === -1) return true;
 
         if (hasInternalTestName(user)) return true;
         if (hasInternalDomain(user.email)) return true;