Adding operator '$where' for "mongo-style" queries
Adding operator '$where' for "mongo-style" queries

* Required in some queries with complex logic (using '$or', for example)
  that cannot easily "chain" where() after find() to get the desired result.
* Providing better compatibility with Mongo queries.
* Unsuitable for queries that need to be persisted into JSON file.
* To be documented for Loki users.

Thrilleratplay/LokiJS,Thrilleratplay/LokiJS,VladimirTechMan/LokiJS,runnr/LokiJS,ThomasConner/LokiJS,VladimirTechMan/LokiJS,techfort/LokiJS,thrownblown/LokiJS,techfort/LokiJS,thrownblown/LokiJS,ThomasConner/LokiJS,runnr/LokiJS