Improved error reporting and fixed a null id.
Improved error reporting and fixed a null id.

Improved error reporting, fixed null id and enhanced [Plunker](http://plnkr.co/3H1kgFKWsr341zsWLZvp) to show all features of the service.
runnr/LokiJS,ThomasConner/LokiJS,runnr/LokiJS,techfort/LokiJS,VladimirTechMan/LokiJS,VladimirTechMan/LokiJS,N8Sayer/Admin-control-panel,ThomasConner/LokiJS,N8Sayer/Admin-control-panel,Thrilleratplay/LokiJS,techfort/LokiJS,thrownblown/LokiJS,thrownblown/LokiJS,Thrilleratplay/LokiJS