Fixed #4944 -- Added a note about Model.save() raising IntegrityError is a 'unique' constraint is violated. Patch from PhiR.
Fixed #4944 -- Added a note about Model.save() raising IntegrityError is a
'unique' constraint is violated. Patch from PhiR.


git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@6566 bcc190cf-cafb-0310-a4f2-bffc1f526a37

FlaPer87/django-nonrel,FlaPer87/django-nonrel,aparo/django-nonrel,aparo/django-nonrel,FlaPer87/django-nonrel,aparo/django-nonrel