Fixed #10887 -- Fixed a possible gotcha in admin.autodiscover() by moving...

Fixed #10887 -- Fixed a possible gotcha in admin.autodiscover() by moving import_module() outside the try/except. Thanks, lsaffre

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12192 bcc190cf-cafb-0310-a4f2-bffc1f526a37