Merge branch 'hotfix/1.25.28' into stable
Removes yum-config-manager from centos reqs, EPEL comes enabled
reset rvm_current_rvmrc in cd for the same directory cd, re-fix #2417
make sure __rvm_after_cd does not fail
1.25.29
Merge branch 'master' into hotfix/1.25.29
Merge branch 'hotfix/1.25.29'
Merge pull request #3003 from atrepca/centos-epel

Removes yum-config-manager from centos reqs, EPEL comes enabled