Changes to Approved DL Platforms

Ellis Academics and Lifetime Library have been removed from the list of approved DL platforms, due to lack of use. In addition, the proxy hour award for Rosetta Stone has been changed to 3 proxy hours per completed core lesson, and 2 hours per completed lesson if the speaking portion is not completed (many students cannot complete speech activities if they lack  the speech component/don't have a a built-in or USB mic, which means the lesson is still shown as "in progress" and no proxy hours could formerly be claimed).