Merge branch 'hotfix/1.25.19' into stable
do not teardown_final when using __rvm_with, update #2690
allo certsync on macports instead of curl-ca-bundle, fix #2692
make sure ree is installed using 1.8.7, fix #2693
prevent updating empty certificates path, update #2690
add missing requirements_osx_port_lib_available, update #2692
rubinius 2.2.6
1.25.20
Merge branch 'master' into hotfix/1.25.20
Merge branch 'hotfix/1.25.20'