For all versions:

For all versions:
Updated fix_geometry_columns to use a more readable format in queries.

For PG >= 73:
Updated fix_geometry_columns() to consider schema when fixing attrelid and
varattnum, also changed empty value to 'public' string for records with
an invalid schema specification.
Updated DropGeometryColumn to actually issue the
ALTER TABLE DROP COLUMN query.

git-svn-id: http://svn.osgeo.org/postgis/trunk@416 b70326c6-7e19-0410-871a-916f4a2858ee