Drop support of root namespace in model
Don't show users password change page if ldap users
Merge pull request #5117 from karlhungus/feature-password-update-skipped-when-ldap-user

Don't show users password change page if ldap users
Merge pull request #5112 from hiroponz/drop-support-of-root-namespace

Drop support of root namespace in model
Merge branch 'master' of github.com:gitlabhq/gitlabhq