Commenting this line in /lib/amd/src/modal.js

Comenting these three lines in /lib/amd/src/modal.js:

//if (!$(e.target).closest(SELECTORS.MODAL).length) { 

//    this.hide();

//}

This is covered by behat.

For manual testing:

1. Create a course
2. Go to the course's question bank and add more than 20 (for example 22) questions from any type (true/false questions might be faster to create). Make a note of the question category you are creating the questions in.
3. Create a quiz in the course
4. Go to the question editing page of the quiz
5. Click on the "add" ink and then select "from question bank".
6. Select the category you had put the questions in (from step 2)
7. Verify that the list of questions is paginated.
8. Click on page 2 link
9. Verify that the list of questions is updated and now shows questions from the second page
10. Click somewhere outside of the modal (on the grey area)
11. Verify that the modal is closed