Schema Cleanup

On 2013-08-14, the Syndication WG discussed the following topic as requested by James Martin.

**Now that we are using a public facing version control system, do we need the lengthy, but incomplete change log at the top of the XSD files?**

The group agreed that removing the obsolete data was a good thing to do.

Actions:
1. James  Martin will update the headers with new information and remove the obsolete version information.
2. Action: Paul will ask Bob Gottesman about the text for the copyright.*
  * In the interim, existing copyrights are to be left as is. New files and files with edits have the "Copyright 2013 RESO" added to the header.