Add fix for the security vulnerability reported in CVE-2014-9116 taken
from the mutt GIT repository.
Note update of the "mutt-devel" package to version 1.5.23nb2.
Update to 1.24.1(security update)

Upstream changes:
MediaWiki 1.24.1
This is a security and maintenance release of the MediaWiki 1.24 branch.

Changes since 1.24.0
(bug T76686) [SECURITY] thumb.php outputs wikitext message as raw HTML, which could lead to xss. Permission to edit MediaWiki namespace is required to exploit this.
(bug T77028) [SECURITY] Malicious site can bypass CORS restrictions in $wgCrossSiteAJAXdomains in API calls if it only included an allowed domain as part of its name.
(bug T74222) The original patch for T74222 was reverted as unnecessary.
Fixed a couple of entries in RELEASE-NOTES-1.24.
(bug T76168) OutputPage: Add accessors for some protected properties.
(bug T74834) Make 1.24 branch directly installable under PostgreSQL.
Updated www/mediawiki to 1.24.1
Update libsixel to 1.4.3.

some portabilities and minor fixes.
Updated graphics/libsixel to 1.4.3