jquery install URL no longer correct.

[Mrsnibs]

So galleria stopped working for me a week or so ago on a website where it had been fine.

The problem turned out to be the URL for loading jquery no longer exists or doesn't work:

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.js"></script>

This is also the URL given in the Beginners guide, and elsewhere.

I got galleria working again simply by using a new working jquery url:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>

The beginners guide should ideally be updated (although folowing it did identify the problem!)