Req Doc update

new version of Requirements documentation
Search and Contribute scripts now return xml

Search and Contribute scripts now return their result as xml for easy
processing
Merge remote-tracking branch 'origin/jose' into lazaro
Revert "Search and Contribute scripts now return xml"

This reverts commit 05998b09e703bb3b5f2f186843857fa2f329d7b2.
Selenium Test Cases.