Minor documentation typos in 1.4

[John A. Murdie]

http://www.cups.org/documentation.php/doc-1.4/kerberos.html has the misspelling "authenticatation" in the "Implementation Information" section.

Various http://www.cups.org/documentation.php/doc-1.4 renderings of manual pages (e.g. cupsd(8)) refer to the web instance of the manual page cupsd.conf(5), which is empty. It's fine in the distribution.

(I'll raise a bug report if you wish, but the problems seem minor!)

John A. Murdie