fix anonymise_db.pl failure to update nhs_number if value already exists in patients table and not yet replaced - didn't consider existing values when generating replacement nhs_numbers; adjusted vertical spacing of HaemOnc SLF for test server

spacer row required for HaemOnc SLF 2nd sheet

split Genomics HaemOnc SLF into 2 pdf's to prevent position alignment slippage over multiple requests; tidy up contacts.lib