Some issues in the generated index.html file

[bcls]

Just ran a build off the current master -- found some issues in the generated index.html file:

<link href='css/hightlight.default.css' media='screen' rel='stylesheet' type='text/css'/>
(pretty sure hightlight.default.css should be highlight.default.css)

<script src='lib/highlight.7.3.pack.js' type='text/javascript'></script>
<script src='lib/highlight.7.3.pack.js' type='text/javascript'></script>
(repeated script tag)