Fixed failing samples

Updated uuid/webpack packages
Added froze on objects publicly exposed
Removed remaining while loops for actions/events processing

src/common/systemMetadata.js

@@ -12,5 +12,6 @@ const SystemMetadata = {
   userStreamAcl: '$userStreamAcl',
   systemStreamAcl: '$systemStreamAcl'
 };
+Object.freeze(SystemMetadata);
 
 module.exports = SystemMetadata;