changed C::Roles::Misc::get_blood_tube_type() method of reading yaml file; added outreach practice warning to flash messages after registering new GP practice
moved C::Outreach::get_blood_tube_type() to C::Roles::Misc and moved tube type definitions to yaml file; changed C::A::C::OutreachPractices to Moose class to load C::Roles::Misc; added sort_by to M::User::get_user_locations()
