#2401 Add is_custom options to pagc_rules table

git-svn-id: http://svn.osgeo.org/postgis/branches/2.1@11717 b70326c6-7e19-0410-871a-916f4a2858ee
#2401 fix typo

git-svn-id: http://svn.osgeo.org/postgis/branches/2.1@11718 b70326c6-7e19-0410-871a-916f4a2858ee