added patient note field to screen and results page; bugfixes: unlock_request() needed new acions to match tt; patient => patient_note is one-to-one not one-to-many; new_user_msg.tt formatting}
git-svn-id: https://jti.org.uk/svn/hmds_lims/trunk@1695 4177bd82-f056-0410-812d-caef170e3fa0
