This relates to the cloze question answer when hovered.

This reverts to the previous way in which this was calculated.

Merge branch 'MDL-52037-cloze-whether-correct-feedback-width' of https://github.com/lucaboesch/moodle

Move the variable definition closer to where it is used.

When the teacher is upgrading a previously entered grade, we re-display
exactly what they typed before if possible, rather than displaying with
a set number of decimal places.

I had a test that cared about the difference between value="5.0" and value="5".

I removed the additional tooltips because I think that they are just used
in the notifications and messages context and duplicate the all over used
title tag that gives the same information when hovering. So the whole system
stays more consistently.

Copy / adapt some styles from the bootstrap progress widget to match the DOM used for file upload progress.

Bootstrap changed this alot in the current beta so I opted to do a minimal change (affect the scss for boost only), rather
than adapt the HTML to something that will change again anyway when we upgrade to the release version of bootstrap 4.