Watu has been updated to version 1.6.
Changes:
1. Removed obsolete rich text editor and replaced with wp_editor call
2. Added "Essay" (open-end) question
3. Resolved possible Javascript conflicts
4. Internationalization ready - find the .pot file in langs/ folder
I have started writing a changelog on the Wordpress repository page.
As the plugin is now internationalization-friendly, we are looking for volunteers to translate the plugin to other languages!