find_version returns latest record if version is nil. Added versions_count delegate Versioned model.
find_version returns latest record if version is nil. Added versions_count delegate Versioned model.

sigvei/acts_as_versioned,mjsommer/acts_as_versioned,technoweenie/acts_as_versioned,amberx/acts_as_versioned,cnk/acts_as_versioned,ilabsolutions/acts_as_versioned,asee/acts_as_versioned