EXOGTN-1484 [Date Time Picker] Impossible to select time after clicking on the scroll bar

Fix description:
* Use off/on methods of JQuery to remove/attach an event handler on scroll bar.
EXOGTN-1548: Update font style when hover on an action link
Merge commit 'f575e08b86d24e631f711392d404c0a9211e02ad' into HEAD