fixed bug of children group error checked
Code optimization for item_categroy
Add comments and Code optimization for item_category
Remove unused code of order
Code optimization of order
Code optimization for category_group
Remove item deletion related codes
Change item/attribute_type 'code' input style  refs #13141
Fix label.
Remove unuse codes and change upload dir related codes  refs #13133
Code optimization for item about user permissions
Change '必要なフラグ' to '必須項目フラグ' refs #13117
Code optimization for item_question(use can_transition function)
Change code name to '項目グループ'  refs #13141
Delete upload files before object was deleted  refs #13133
Using a text area if the attribute type is "text"  refs #13149
カートでのお直しダイアログの表示対応
Create a migration file to add columns for coordination to the items table.
refs #12195 #13135 #13151
Merge branch 'development' into migration_fix
Merge branch 'development' into migration_fix