remove user from genomics_data email list

standardised getopts 'd' for scripts using days * for inter-script consistency and disambiguity with 't' (for testing)

added command-line options to crons to allow default duration override

replaced 'email_from' config var with 'service_email' globally (except within unused functions)

bugfix - recent change to new user validation required location param which isn't submitted in user manager page - now optional param; changed quarterly list of specified trial cases to monthly list of all except specified trials; option to specify 'centre' param to lims_server at command-line; changed misleading address for user application form in login template

see previous