Allow making category group required for channel; Allow restricting category selection to single category per group#722

bryannielsen merged 6 commits intorelease/7.4.0ExpressionEngine/ExpressionEngine-User-Guide:release/7.4.0from

feature/7.x/category-group-settingsExpressionEngine/ExpressionEngine-User-Guide:feature/7.x/category-group-settingsCopy head branch name to clipboard