Admin console should have its own hard-coded session timeout

[mpwoodward]

Derrick Jackson and I were working through some issues with huge numbers of sessions being spawned on some servers for various reasons, and we took the simple route of fixing it since sessions weren't needed on these boxes of setting the session timeout globally to 1 second.

The problem is the session timeout also affects the OpenBD admin app so it too had a session timeout of 1 second, so Derrick set a timeout of 20 minutes specific to the OpenBD admin app in its Application.cfc.

I'm thinking this should become part of the code to avoid issues like this in the future.