Fixed #8126: improved `admin.autodiscover()` to be more forgiving of invalid `INSTALLED_APPS` entries and/or exotic import schemes that don't have `__path__`.
Fixed #8126: improved `admin.autodiscover()` to be more forgiving of invalid `INSTALLED_APPS` entries and/or exotic import schemes that don't have `__path__`.


git-svn-id: 554f83ef17aa7291f84efa897c1acfc5d0035373@8583 bcc190cf-cafb-0310-a4f2-bffc1f526a37

svn2github/django,svn2github/django,svn2github/django