bug fixes

Fix assorted compiler warnings. Fix check for duplicate owner dependencies.

supports v17

Minor change to compile with v17.

supports v16

as confirmed by Rushabh

1.3.0

support v14

1.2.0

Add support for new catalog columns in v11, v12, and v13.

Sumanta Mukherjee, reviewed by Rushabh Lathia and Beena Emerson

version 1.1.0

Don't check edb_partdef, edb_partition in v10+.

They don't exist any more.

Thom Brown