def method_missing(cmd, options={}, *args, &block)
      native(cmd, options, *args, &block)
    end
def method_missing(cmd, options={}, *args, &block)
      native(cmd, options, *args, &block)
    end
Methods not defined by a library implementation execute the git command
 using #native, passing the method name as the git command name.

 Examples:
   git.rev_list({:max_count => 10, :header => true}, "master")