Now take advantage of new argument accepted by `AddGeometryColumn` in SpatiaLite 2.3 that allows geometry columns to specified as `NOT NULL`.
Now take advantage of new argument accepted by `AddGeometryColumn` in SpatiaLite 2.3 that allows geometry columns to specified as `NOT NULL`.


git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@10443 bcc190cf-cafb-0310-a4f2-bffc1f526a37

alex/django-old,mitsuhiko/django,t11e/django,skevy/django,skevy/django,t11e/django,sam-tsai/django-old,django-nonrel/django-nonrel,Smarsh/django,django-nonrel/django-nonrel,bfirsh/django-old,skevy/django,Smarsh/django,bfirsh/django-old,bfirsh/django-old,disqus/django-old,mitsuhiko/django,Smarsh/django,disqus/django-old,disqus/django-old,t11e/django,Instagram/django,sam-tsai/django-old,django-nonrel/django-nonrel,Smarsh/django,Instagram/django,sam-tsai/django-old,mitsuhiko/django,jamespacileo/django-france,jamespacileo/django-france,alex/django-old,jamespacileo/django-france,Instagram/django,alex/django-old,sam-tsai/django-old