Made helper js change to allow easier updating of collections.  Also, updated Base, Redis, and MySql to properly support specifying sSource in a class config - thus forcing that class to be stored only in one db type.  Use case for me was a 'Stream' class that contained update pointers to other bits of data in my model.  These stream items don't need to live in MySql (volatility isn't a problem) and they don't need to live long so I also made sure that TTL is getting set properly in Redis.