fix function name 117753259e4960c94f4171491e649c30915a1c65, update #2556
allow updating osx certificates for path and openssl, update #2556
skip duplicate call to rvm_requiremnts_fail_or_run_action for requirements_osx_update_openssl_cert, update #2556
add info how to update certificates when autolibs < 3, fix #2556