[Bf-docboard] interwiki links

[Nathan Letwory]

We have now a few tags that can be used for 'interwiki' links, with two of
the actually doing interwiki, and the rest for handiness. Interwiki-links
are created thus:

[[:tag:target]]

The tags with corresponding sites they link to:

See my TODO list for usage, and what interlinking possibilities we have
(most notably IMNSHO the linking to our trackers ;)
http://mediawiki.blender.org/index.php/User:JesterKing/Todo

/Nathan