[Therion] new snapshot

Hi all, new snapshot is available. Changes include: * Austrian symbol set is implemented (just use "copy AUT" in your layout to activate it). * New coordinate system OSGB:ST is added (Andrew, please test it -- if it works fine, we will include other squares as well) Other news is that after a spam attack we decided to change editing policy for wiki pages. Editing is now allowed only for registered users (some of the users are already registered; for those who are not we will publish registration instructions soon). Martin