[1.3.X] Backported the fix for #15852 -- Modified cookie parsing so it can...

[1.3.X] Backported the fix for #15852 -- Modified cookie parsing so it can handle duplicate invalid cookie names. Thanks goes to Fredrik Stålnacke for the report and to vung for the patch.


git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.3.X@17168 bcc190cf-cafb-0310-a4f2-bffc1f526a37