Fixed #1717: ContentType.objects.get_for_manager() is now cached for a small performance gain when dealing with content-types regularly.  Thanks, Dave St.Germain.
Fixed #1717: ContentType.objects.get_for_manager() is now cached for a small performance gain when dealing with content-types regularly.  Thanks, Dave St.Germain.


git-svn-id: 554f83ef17aa7291f84efa897c1acfc5d0035373@4307 bcc190cf-cafb-0310-a4f2-bffc1f526a37

svn2github/django,svn2github/django,svn2github/django