possible fix for MitItUp problems

I’ve made a few changes to the structure of your html, but I think the important things to figure out is what version of jQuery is needed for MixItUp to work.

There are two jQuery scripts being loaded on your page. You'll want to only have one.

```
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
```

```
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
```

Notice the difference in the url. When you have a url that starts with `//` instead of `http://`, that is called a protocol-relative url. These protocol-relative urls don't work when you’re working locally.

So, next steps. I’d do the following:

- [ ] merge this pull request into your project, so that it cleans up where your javascript is being loaded
- [ ] remove the protocol-relative script source for jQuery 1.10 `<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>`
- [ ] load jQuery 1.9.1 `<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>`