Initial commit

[[Administrative notice:

This is the Glamdrol theme as it was before the Wesnoth.org asheviere ->
baldras host migration and accompanying MediaWiki upgrade in October
2013. It worked without issues with MediaWiki 1.15.1, requiring no code
modifications.

It is not known whether there are previous versions of Glamdrol at this
time, but archiving them falls outside the scope of this repository.
From this point we should move forwards to build an improved version of
the Glamdrol theme that works with minimal/no issues with modern
versions of MediaWiki such as 1.22.x.]]
Add front page portrait randomization script and images

I rewrote the script from scratch around 2009 or so after the previous
version (probably written by Mist/cycholka) was lost in a hard disk
drive crash affecting Wesnoth.org around July/August 2008. Accompanying
the script are the front page portraits in the current rotation as of
April 2014.

Both the script and the portraits have remained unchanged for a few
years.
Move to GNU GPL v2+ licensing

The license for Glamdrol up to this point is said to be the GNU GPL
without specifying any version in particular. Even in version 1.0 of the
license [1], this should be assumed to grant users the choice between
any version of the license:

[1]: http://www.gnu.org/licenses/old-licenses/gpl-1.0.html

> If the Program does not specify a version number of the license, you
> may choose any version ever published by the Free Software Foundation.

Furthermore, the author of the Glamdrol theme stated his past intention
to license Glamdrol under the same terms as Battle for Wesnoth itself
when asked by email about a specific GNU GPL version:

> I don't remember what version of GPL I released it under, bug [sic] I
> wanted it to be under the same license as Wesnoth itself. So I think
> it should be "GPL version 2 or later".

In general, the GNU GPL version 1 is now obsolete and shouldn't be used,
and there really should be nobody who cares about us dropping that
possibility for future changes.
Use wiki.wesnoth.org for navbar links instead of www.wesnoth.org
Make site notices look prettier
Fixes for MediaWiki 1.21.x
Update to shared stylesheet inclusions for MW 1.21.x
New Year copyright update
Add Markdown readme file for the repository