PostGIS 1.5 allows distance queries on non-point geographic geometry columns...

PostGIS 1.5 allows distance queries on non-point geographic geometry columns with `ST_Distance_Sphere`, enabled this functionality.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@12890 bcc190cf-cafb-0310-a4f2-bffc1f526a37