progress on static groups

Export now works properly.  Auxiliary functions (edit group and clone
group) have not been written yet.  Note that I had to make some
corrections to object_properties to fix ME import errors.  I still get
an error when I import my German one-of-each example, but I haven't been
able to track it down.  The Entente one-of-each tests imports
flawlessly.

I had to update exportColumns.php because the column numbers changed in
rof_object_properties... an argument against using column numbers
instead of names!

DB has changed again, so DB version number has been bumped.

Be certain to update the object_properties file from the new
rof_object_properties.sql before testing export and import... to avoid
unnecessary errors.