Add the `skip_version` option
Saving a version without saving the model should be able to rollback to the latest version
…ck to the latest version.
version from the version history, for specific version we follow the same API as that of version_at.
Allow protected attr modification during rollback
Change in 0.2.6 meant update_atributes method set the attrs but did not save the data to the database which is the expeceted behaviour.
…d => updater_id, similar to save. Updated README
…mongo_mapper database configs to be present for creating the indexes
Was using user_id should be doc_id
A few modifications that we have found helpful