imaging issues - changed some dbix methods from query() to select(); moved imaging from a subset of hmrn_data.params to hmrn_data; completed conversion to follow-up scanning data
HMRN new diagnoses list displays number of previous requests for patient; multiple record search displays request and diagnosis status, with diagnosis as mouse-over if authorised
HMRN data collection templates; extended HMRN potential new malignancies function to include known previous diagnoses list; renamed M::HMRN::Data::all_diagnoses() to all_icdo3_diagnoses() & modified for use with M::HMRN::get_previous_diagnoses()
