False warning re MemoryStore when using connect-mongo

[Ziink]

Set NODE_ENV=production in chat example and you get the warning:

Warning: connection.session() MemoryStore is not
designed for a production environment, as it will leak
memory, and will not scale past a single process.

Racer patches the memory store to redirect to a persistent store, yet 'connect' gives the above warning.

The easiest fix might be to check for the persistent store and alert user to ignore the following warning.

[nateps]

No longer relevant in 0.5