Wiki engine updated

Hi all,
  I've updated the Moin wiki engine on eu to version 1.9.2 (was
previously running 1.8.5) due to the need to install security fixes.
Please see http://hg.moinmo.in/moin/1.9/raw-file/1.9.2/docs/CHANGES
for a complete description of the intervening changes.

There should be almost no contributor-visible changes, with these exceptions:
- syntax highlighting syntax has changed from
{{{#!cplusplus
to
{{{#!highlight cplusplus
Old syntax is still working but it's deprecated, it'll probably cease
working after the next upgrade.

- There are a few new actions in the "more actions" menu. Check them
out, they may be useful to you

Please report any failures you may experience.

-- 
    /kinkie