Fix for CVE-2013-0338 & CVE-2013-0339

from https://git.gnome.org/browse/libxml2/commit/?id=23f05e0c33987d6605387b300c4be5da2120a7ab

bump PKGREVISION
fix for CVE-2013-0338 & CVE-2013-0339 in libxml2
Update clib to version 0.3.

Changes since version 0.2.2:
 - Added additional socket functions (str2addrinfo, str2sockaddr,
   connect2addrinfo and bind2addrinfo).
 - C++ compatibility (no variables named new, etc).
 - Use more const.
 - NetBSD compatibility for getnameinfo().
 - Bugfixes.
Updated devel/clib to 0.3