Fix incorrect bootstrap script tags

[jaromero]

Currently in the index.html file, the bootstrap script tags are mistakenly generated with the type attribute instead of src, like this (which prevents them from loading and actually working):

<script type="/bower_components/bootstrap-sass/assets/javascripts/bootstrap/affix.js"></script>
<script type="/bower_components/bootstrap-sass/assets/javascripts/bootstrap/alert.js"></script>
<script type="/bower_components/bootstrap-sass/assets/javascripts/bootstrap/dropdown.js"></script>
<script type="/bower_components/bootstrap-sass/assets/javascripts/bootstrap/tooltip.js"></script>
...

and so on.

This PR fixes this and updates the tests to make sure that the src attribute is used.

[silvenon]

Lol, I suck 😛 Thanks for catching and fixing this 👍