def rename(name, options={})
      result = @session.rename(path, name, options)
      @path = result.path.gsub(/^\//, '')
      return result
    end
def rename(name, options={})
      result = @session.rename(path, name, options)
      @path = result.path.gsub(/^\//, '')
      return result
    end
Delegates to Dropbox::API#rename.