Starting with version 3.04rc2, users can now create their own templates
for messages which are to be sent to the sender/recipient of the
'offending' mail.

In case templates are not specified (or are missing), defaults are used
which are located in notify.h file.

virge.conf needs 3 new directives:

'template_notify_sender_virus'
'template_notify_rcpt_virus'
'template_notify_sender_attachment'

Names are self-explanatory, I hope.

Sample templates are located in etc/ subdirectory of Virge sourcetree.

Following are the patterns which can be used in the mail template:

%R - Intended recipient of the mail
%F - Sender of the mail
%S - Subject of the mail
%D - Date
%A - Removed attachments (makes sense only for
     template_notify_sender_attachment config directive)
%V - Virus name (makes sense only for virus templates)
