Fix dangling commutator for raster/geometry OPERATOR ~ (#2532)

git-svn-id: http://svn.osgeo.org/postgis/branches/2.1@12134 b70326c6-7e19-0410-871a-916f4a2858ee
Add link from TopoElement to TopoElementArray

git-svn-id: http://svn.osgeo.org/postgis/branches/2.1@12135 b70326c6-7e19-0410-871a-916f4a2858ee