The markdown parsing is broken/disabled for release notes. Sorry about that, I'm chasing the source of a crash that's been bringing this website down for the last couple of days.
Now, `submissionDate` attribute in `submission` is modifiable and the placeholder text for `NumberItem`s has been adjusted.
Attaching identifiers to submissions (e.g. to link a submission to a certain user) has been made more convenient with the new `identifier` property.
- Internal improvements: Refactoring of the entire model, particularly designing the `SurveyItem` / `ItemResponse` relationship more object-oriented
- Improved in-line documentation (Xcode provides additional information to initializers and function when pressing *option* while clicking on the function's name
- Bug fix: Now using to `TextItem` items subsequently should not cause any issues anymore
- Small improvement: The `description` attribute for `SurveyItem`s is now optional. In case you don't have an additional description to a question, leave away the `description` item in the initializer or set it to `nil` (new default value). Avoid setting the description to `""` as this reportedly caused visual glitches.