Write a note about the ignored items in the reports

Write a note about the ignored items in the reports

Several parameters of sarg.conf can limit the number of lines written in the
reports but, so far, only the denied report was reporting how many entries were
left out.

Now, the authentication failure, the dansguardian and the redirector reports do
write the number of ignored lines.

That change should spare some headaches to the users trying to understand the
reports.

Thanks to Iain Lopata for reporting this problem.