changed version in here to 'development version' to distinguish from releases and branches
hot fix for artifact order restoration.
closes #571 : some js-scripts must not be placed in the header in _autocomplete_artifacts.erb, because the reload on changing tracker has no effect on the header scripts
I've added some information to the workarea- and the scenario description. I also added the description of the demo projekt (without information about diagram editor) refs #566
Put description to i18n closes #566