draft for review

@mhoeber , @cahrens , @explorerleslie , @srpearce please review and comment, did I miss anything in the release that should be included?
It might be worth mentioning the previous state. I'm not a particular fan of this wording, but I offer it for illustration: 

Course authors using Peer and Self Assessment no longer have to understand how to code in XML in order to author problems. A graphical interface is now available that allows professors to browse and unable all of the features of the ORA problem type with clicks. Those features include rubric creation and configuration, enabling and disabling of peer and self assessment modules, release dates and due dates, and student training. 

Note the emphasis on not needing to code, a visualization of how much easier it is to author using a gui, and a reminder of the features that are available in the ORA problem type.