Merge branch 'hotfix/1.25.21' into stable
silence searching for git in smf / ruby requirements
new osx binaries, fix #2732
create default gemset after removing gems from global, fix #2733, update travis-ci/travis-ci#2096
pass proper ruby path to __rvm_initial_gemsets_create, fix #2720, update #2723
1.25.22
Merge branch 'master' into hotfix/1.25.22
Merge branch 'hotfix/1.25.22'