Updated qua.name to release 0.9.1 of writefreely

I've updated the instance to revision fb5340 which is release 0.9.1 of writefreely.

The upstream announcement has all the details.

There are no relevant user visible changes in this release, only for site managers. See the upstream announcement for details.

However, as I neglected to log the 0.9 release separately, that one has a few user visible changes which warrant a few lines: (see also the 0.9 changelog )