added H&E/Giemsa test to H&E worklist; major Outreach changes - changed self_care_1 & self_care_2 fields to self_care & usual_activity; made all lab-param fields optional for validation; made heath_index field on outreach.questionnaire_eq5d optional; M::Outreach::update_patient_questionnaire() only attempts to write new data if data for table exists - to allow outreach questionnaire submission with empty EQ5D fields; outreach demographics.dispatch_to val defaults to home
