Tech info: ArrayPrefs2

09/28  I added saving and loading of the todoList array today.
I'm using PlayerPrefs to save and load single variables and ArrayPrefs2 to save and load arrays.  Since I'm using Lists, I have to convert the lists to and from arrays when using ArrayPrefs2, but I plan on creating a more robust system later.  Possibly using XML.  Ideally, I would save individual entries in the todoList, instead of the entire array, but saving the whole array every time a todoList item is removed or added may not be too resource intensive.  I'm really not sure.  Right now I'm mainly focused on getting everything running and released.  I'll focus on optimization later.