CB

Remove jQuery migrate as it is now no longer needed.

Remove overlib as it's no longer used.

Review upgrading to jQuery 3.0.

https://blog.jquery.com/2016/06/09/jquery-3-0-final-released/

If done then do not remove jQuery Migrate. If not needed for any plugins then still include it, but default disable it for new installs. Some additional notes as follows.

The following may directly affect all custom CB jQuery plugins that parse data attributes into a settings object:
https://jquery.com/upgrade-guide/3.0/#breaking-change-data-names-containing-dashes

The following may affect Tooltip, MoreLess, and a few other usages that need to determine dimensions:
https://jquery.com/upgrade-guide/3.0/#breaking-change-width-height-css-quot-width-quot-and-css-quot-height-quot-can-return-non-integer-values

The following is a bit confusingly worded; there are a lot of show/hide usages; must be heavily tested:
https://jquery.com/upgrade-guide/3.0/#breaking-change-show-hide-and-toggle-methods-now-respect-more-stylesheet-changes

The following will be a serious problem if 3rd party jQuery plugins used are not updated:
https://jquery.com/upgrade-guide/3.0/#deprecated-bind-and-delegate