new home page (hello) link and quick search function on 'hello' page for non-lab-staff users; added optional sort_by to M::LabTest::get_section_lab_tests; added optional command-line arg to nycris.pl
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
