upgrade jquery to match django

[olymk2]

This is using a very old version of jquery which is likely now vunerable, also django seems to have jquery 3.3 already so only jquery ui should be needed, any reason this is still at the old version ?

[olymk2]

overriding in the admin area with this seems to work.

    class Media:
        OrderableAdmin.Media.js = ('//ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js', )