Broken links in Scala Style Guide

[ghost]

On the style guide page [http://docs.scala-lang.org/style/], the link to overview [http://docs.scala-lang.org/style/overview.html] is broken. On any of the content pages, the sidebar is broken with the error:

**ERROR**. Couldn't find the total number of pages in this set of tutorial articles. Have you declared the `outof` tag in your YAML front matter? 

[ghost]

Fixed by b9d33d0.