Status Messages for OurUser

Here's the code that adds support for OurUser's status message (part of issue #69, does NOT include code for friends' status messages).  Let me know what you think!

To edit the status message, click on it and it changes to a RenameEditWidget.

![capture windows](https://f.cloud.github.com/assets/1539144/1367347/1949e6ec-391a-11e3-9046-8bb5859be4c6.PNG)
![screenshot from 2013-10-19 16-27-10](https://f.cloud.github.com/assets/1539144/1367348/1af5bac0-391a-11e3-972a-33006eb6b827.png)