Favicon goes to the root directory of website.

Only setting the `href` element to `"favicon.ico"` won't render the
favicon when not on index directory. Setting it as `"/favicon.ico"` will
ensure that it loads the `favicon.ico` file from the root directory of
the website.

Bonus: Some code cleanup, whitespace removal etc.
Merge pull request #3 from resir014/patch-4

favicon reference should be to root of website, not relative to location of page