Previously, if the user tried to submit content which was
malformed utf-8, Instiki would complain loudly to him.
A slightly more user-friendly approach was suggested by
the latest Rails 2.3.4, and a conversation with Sam Ruby
(who suggested some improvements).
Now, instead of complaining, we remove the offending bytes,
leaving a well-formed utf-8 string, which we pretend is what
the user meant to submit.
This release upgrades Instiki to Rails 2.3.4, which
patches two security holes in Rails. See
http://weblog.rubyonrails.org/2009/9/4/ruby-on-rails-2-3-4
There are also some new features, and the usual boatload
of bugfixes. See the CHANGELOG for details.