Licencse type mandatory

Hi,

Selection of a license is always "mandatory," but if you don't make the "All Rights Reserved (None)" license available, then the user will have to choose from the available Creative Commons licenses. I've just made some minor changes to make this a little more obvious:

• I changed "All Rights Reserved (None)" to "None (All Rights Reserved)"
• I added to the following to the available license types instructions: 'To make a Creative Commons license mandatory, unselect "None."'

Hope that helps! Let me know if you have any thoughts on how this can be made more intuitive...