Fixes Author and Copyright info for Editor - None

Just a tiny cosmetic fix:

I do not know if this is wanted for political or legal reasons, but in Extensions Manager, Editor - None is listed as having an "Unknown" author.
I fixed this by adding the required info in none.xml
There is an inconsistency, anyway: the "Creation Date" is set as "August 2004", while the standard Copyright notice says "2005 -2014"