Added test for Issue #3367 (tau_time db insertion)
Added test for Issue #3367 (tau_time db insertion)

Somehow, all images inserted into the database end up with tau_time=3600.0,
regardless of the value passed in.

transientskp/tkp,bartscheers/tkp,mkuiack/tkp,transientskp/tkp,mkuiack/tkp,bartscheers/tkp