Get specific version for diff

[borg1980]

I think it's usable to have an method to return version based on version_id (not only current and previous) - somethimes we just need every change to our Model (step by step).

For example:

   /**
     * Returns version based on the version id
     * @return Version
     */
	public function getVersion($version_id)
    {
		$class = $this->getVersionClass();
		return $this->versions()->where("version_id", "=", $version_id)->first();
    }

[Peter-Krebs]

Is this different from Version::find( $version_id )?