Comment 10 for bug 1447746

For now, here is a branch with a pg_tap test for column existence added. It doesn't make a lot of sense to check the data in the column as that is under user control and subject to user whim.

http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/dpearl/LP1447746_import_flag_A