Merge branch 'hotfix/1.25.14' into stable
select 2.1.0 from 2.1.0-p0 when it's not installed, fix #2545
use rvm_env_string only when no rvm_ruby_string was given, update #2469, update #2531
add support for old environment files, closes #2516
clean rvm-auto-ruby formating, update #2546
fix gemset copy finding source and naming destination, fix #2534
1.25.15
Merge branch 'master' into hotfix/1.25.15
Merge branch 'hotfix/1.25.15'