Fixed: In Customer Portal no attachments are shown (bug#10586).
Squashed commit of the following:

commit 92d6c810fb1fc6d7fb65ffcbf370194b5ab65e37
Author: s7design <otrs@s7designcreative.com>
Date:   Thu Jul 3 14:48:58 2014 +0200

    http://bugs.otrs.org/show_bug.cgi?id=10586

    It is fixed display long list of attachments in customer portal