Remove jquery/scripts from hasper

[dencold]

Linked into every page on the hasper theme is this partial include:

  {{partial "scripts.html" .}}

Which comprises of these three script tags:

<script type="text/javascript" src="{{.Site.BaseURL}}js/jquery.js"></script>
<script type="text/javascript" src="{{.Site.BaseURL}}js/jquery.fitvids.js"></script>
<script type="text/javascript" src="{{.Site.BaseURL}}js/index.js"></script>

Adding around 200ms of load time to the page on a 4g device:

The only thing we use all the jquery code for is some smooth scrolling to jump from the cover page down to the content:

hasper/static/js/index.js

Line 27 in 23c4aed

$.fn.arctic_scroll = function (options) {

Definitely not worth all that load.

Look to replace this with a simple function that achieves the same functionality and drops the jquery requirement.