Thu-Mai's Lists and Strings Exercise

@eah13, I have completed the List and Strings Exercise.  Please see post here: http://tlchristian.github.io/spring2014/2014/01/30/ThuMaiListsStrings.html.

I tried to use the Python console, but it seems that if you include more than one in a post, things get messy.  The top-most Python console will grab the code for all code on the page that is written into a console.  I ended up just using code blocks.