[wp-docs] theme and plugin compatibility pages

[mrmist]

In message <4D263361-1712-4F8D-BC11-B6268FFCE1F2 at ftwr.co.uk>, Peter 
Westwood <peter.westwood at ftwr.co.uk> writes
>
>
>
>The time will come when those pages should go completely and we should 
>refer people to Extend.
>
>This of course needs to be combined with a way of the community being 
>able to mark plugins/themes on Extend as compatible and compatibility 
>being searchable.
>

Good.  For the time being we seem to have reached an acceptable solution 
which is to consolidate the multiple-theme sites.
-- 
mrmist