Fixed some Oracle backend test DB creation code bugs.
Fixed some Oracle backend test DB creation code bugs.

Made saving of modified settings compatible with multi-db, removed dead and superfluous code.

git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@14489 bcc190cf-cafb-0310-a4f2-bffc1f526a37

disqus/django-old,mitsuhiko/django,django-nonrel/django-nonrel,Instagram/django,disqus/django-old,skevy/django,jamespacileo/django-france,skevy/django,disqus/django-old,Instagram/django,jamespacileo/django-france,skevy/django,django-nonrel/django-nonrel,Instagram/django,jamespacileo/django-france,mitsuhiko/django,django-nonrel/django-nonrel,mitsuhiko/django