patched M::HMRN::update_comment() to look for form content befroe inserting new record, to prevent insert of empty comment field; reduced number of fastcgi process to 3 in preparation for new centre; reduced number of tables in create_core_data.gz
added auto-reportable function to DataUpload::do_bcr_abl() method, but commented out in M::Result::update_results_summary() pending rules for setting diagnostic term; added pdf and jpg to list of files 'guest' users can see under DataFiles link; disabled one of 'reset' links in Results page
worklist delete records protected from back-button & resubmission; bugfix to C::ReferralSource::lookup() - only attempts to load 'skip_wrapper' flag if present
new admin function to register new user from email application; moved C:::User::_generate_new_password() to C::Roles::User for sharing with C::Admin::User::new_user()
