move all err msg construction to Role, simplifying data_entry() * fix broken auto-expansion on Results page caused by reversion of _section_name param from sectionName to section
fixed error introduced by using nsort to handle numerical genomics lab section names, used natural_sort() callback in render_view() instead; replaced direct call to Sort::Naturally in Role::Base::render_view natural_sort call-back with equivalent function in LLU::n_sort
function to retrieve previous requests combined with get_single_request_data() so available to all views (search, results, report, etc); extended outstanding lab-tests display to unreported & unauthorised worklists
added patient summary header to all request-related pages (phonelog, errorlog, email, data edits, unlock record, etc); option to switch off gross description field
