Fixed #10725 -- When the child process spawned by the autoreloader gets killed...

Fixed #10725 -- When the child process spawned by the autoreloader gets killed by a signal, passed the signal to the parent, in order to make debugging easier.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@17296 bcc190cf-cafb-0310-a4f2-bffc1f526a37