Updated license and copyright.

Updated classes with bottom indexing notes related to copyright and license.

library/kernel/json_value.e

@@ -40,4 +40,7 @@ feature -- Visitor pattern
 		deferred
 		end
 
+note
+	copyright: "2010-2014, Javier Velilla and others https://github.com/eiffelhub/json."
+	license: "https://github.com/eiffelhub/json/blob/master/License.txt"
 end