[regrep] Schema changes for V3 etc.

Team,

On Matt's urging, I have diffed schemas from V2.1 to today's V3 schema. 
It was tricky when it came to comparing old rs.xsd with new rs.xsd + 
lcm.xsd. Here is the list of changes so far. The diffs are attched. 
Please let me know if I missed anything.

Next, I will take this list and start updating the database.sql SQL 
schema file to reflect these changes. Nikola is busy working on the 
final changes on ebRS filter query section. Sally will soon begin the 
ebRIM editorial changes.
Matt, we need one more change to WSDL to add support for 
GetNotificationRequest (its reponse is a Notification). See query.xsd 
and ping me if you have questions. Thanks.

We are now getting into the end game for version 2.4 which we will 
consider for TC approval. Once approved we will call it version 2.5 
after updating the documents status.

-- 
Regards,
Farrukh