Switch order of import, export buttons
Add export setting: include column numbers
Merge branch 'colnum_setting'
Convert export settings to UL
Update/rename uiOps.settingsToUI; add .UIToSettings; add cloze_answers setting
Ensure all correct answers are within Cloze subquestion choices
Merge branch 'cloze_answers'
Add clock signal generator
Fix exportOps.validate_
Use consistent settings names
Add colGroupSize setting
Make settings block optional for import
Release v0.13.0: add export settings, clock generator