Updates to projects page

[Steven Kreuzer]

I just made a quick sweep over the projects page and updated it a bit
to add some new projects and remove some old ones that have been a
part of freebsd for quite some time:

Changes:

* Add links to ARM and MIPS porting projects
* Remove reference to KAME since FreeBSD has had ipv6 support since 4.0
* Remove reference to SYSLOG-SECURE since original author stated it is no
longer being worked on
* Remove reference to busdma/smpng driver conversion since the project
was completed in 2005
* Remove reference to CVSweb since FreeBSD has fully migrated to Subversion

Can someone review this patch for me:
http://people.freebsd.org/~skreuzer/patches/projects_xml.patch

Many Thanks