minor tweaks to bring test suite up to date with recent changes

moved Devel::Cycle find_cycle() code from cgiapp_init to teardown, and made it permanently active for non-fastcgi requests - found and fixed many circular refs inside callback subs; new resources menu items; new file-uploader scripts

added Base::is_lab_staff() method; access to lab test history now restricted to lab staff; C::Roles::DataMap::user_locations_map uses user_locations table instead of email_contacts table so that non-network users get a new diagnosis list

added user permission restrictions to resouces links; restricted resources/new_diagnoses list to users location if not lab-staff - doesn't work properly yet; changed LIMS::_debug_authen() to use LIMS::Local::Debug::DEBUG() instead of self->debug() to avoid circular ref to self in caller; added specimen description to patient summary display

removed reference to in CAP::Authen config callback - causing multiple filehandles to build up; separated calls to different system resources in resource meter code

tweaks to resource meter

added disk space display and countdown timer to resource meter function

system resources meter

modified request error code 'add new' function to skip unique error codes in drop-down menu if already in use - same functionality as edit request error code function

added ability to edit and delete request error code entries

changed firstname_format.yml config to AoA and corresponding Base::_format_first_name() method - both made easier to comprehend

added format_firstname callback in templates to enable user-configurable special formatting to first_name - uses format_first_name sub in render_view + format_firstname.yml; changed user_location.region_code to varchar(5) to allow longer parent organisation codes

new histology samples cron script

minor bufixes & core data update for production server

bugfixes to test suite