replaced system unzip with Archive::Extract in Local::unzip_file(); bugfixes & enhancements to bcr abl data import routines

moved ajax js functions not requiring var interpolation from site/ajax.tt to js/ajax.js; added patient_demographics table def to lims.sql; moved M::Request::get_hmrn_new_diagnoses() to M::HMRN::get_new_diagnoses(); updated site/autosuggest.tt jquery framework to v1.4.2; added new linked menus javascript to hmrn/data/treatment.tt - doesn't work yet

hilis3 conversion scripts for YHHN