Drop all calls to geometry::text during topology population (#2616)

git-svn-id: http://svn.osgeo.org/postgis/trunk@12195 b70326c6-7e19-0410-871a-916f4a2858ee
Replace calls to deprecated 'Equals' with calls to 'ST_Equals'

git-svn-id: http://svn.osgeo.org/postgis/trunk@12196 b70326c6-7e19-0410-871a-916f4a2858ee