patched comment history to return app warning if no entry found in request_report_history table - was generating fatal error; fixed all syntax errors in _get_request_status_query_args
histology block refs displayed in year groups; changed date ref to 16 char string for recorded delivery info; returned list of records updated instead of redirect to redisplay block ref worklist
added direct link in registration details for use at 1st login; changed layout of tt_wrapper to remove extraneous white-space when rendering templates for text eg emails; revamped registration details message
changed 'confirmation' flag in edit patient function to all_records; replaced FV_length_between & FV_max_length methodss in check_param_length validation - Data::FormValidator upgrade to v4.71 seems to have broken them
