Add a test case showing that SqlObject finalize() calls open Connections.
When a SqlObject does not have a Handler, cowardly refuse to open a new connection.
Instead fall back to normal Object.  This is especially important for #finalize().
Fixes #82.

issue # for code
Merge pull request #83 from stevenschlansker/finalize-sqlobject

Prevent SqlObject method invocations from checking out connections for non-SqlObject methods