Version 1.5.1

new features

 Quiz creation form
1. You can now set options.

functional improvement

Grades
1. Changed to reflect the category refinement when creating CSV.
Contents management
1. Changed so that details are displayed when an error occurs when importing a question.

Bug Fixes

Manage Members
1.Fixed the problem that Notice is displayed after inviting all members.
Grades
1. Problem solved where the question text was not displayed in the grade related CSV.