bugfix: genomics_xml validate_params always returned arrayref (so evaluated to true) even when empty; changed new_user.tt group_label to group_name for case-insensitivity of 'guest' user; field name change for genomics
put delete_image() unlink inside eval to catch "can't find class method 'unlink'" error; new storage module functions; validation function to substitute spaces in application_form.cgi
