Added a test for dependent vars with greater rank then the independent vars.
Added a test for dependent vars with greater rank then the independent vars.

It's a mouthful... Anyway, the code actually limits the
difference in rank to just one additional dimension.

OPENDAP/olfs,OPENDAP/olfs,OPENDAP/olfs,OPENDAP/olfs,OPENDAP/olfs,OPENDAP/olfs