Both Alfresco One Platform and the Alfresco One installers embed Sharepoint Imitation module.
This module is still unreleased, in version 1.0-SNAPSHOT.
This issue is a reminder that we need to release it at one point, before we release Alfresco 5.1
Note that Sharepoint Imitation depends on aosservices, which is still in version 3.0.0-SNAPSHOT itself, so we have a chain of releases to make there.
I'd suggest we target a release for the mid-January Community release – at least a 1.0-RC1.