Improve Range output update

When I click on the range thumb, and change the position of the thumb, the output should be updated. 
It's updated only when I click on it a second time, to change it's position. 

So if my first action is to click on it, hold it and displace the thumb, the value will not change.

I think there is a conflict between the `click` & the `change` event. 

To fix.
