Added the Series Plugin

I have now added the series plugin, and we have a page that acts as an index to the different series on the site. I have removed the previous pages that existed for the two java tutorials that I had up. They are now part of a series. That is why you see them posted again today. I had to convert them into a post, not a page to put them into the series.

I also have a new series going, on building a NAS. There are two posts there now, and it will be ongoing as I rebuild my NAS and show how to use Linux with RAID, LVM, and other tools.