cm15/ruby_time.go
func (r *RubyTime) UnmarshalJSON(b []byte) (err error) {
	s := string(b)
	t, err := time.Parse("2006/01/02 15:04:05 -0700", s[1:len(s)-1])
	if err != nil {
		return err
	}
	r.Time = t
	return nil
}
func (r *RubyTime) UnmarshalJSON(b []byte) (err error) {
	s := string(b)
	t, err := time.Parse("2006/01/02 15:04:05 -0700", s[1:len(s)-1])
	if err != nil {
		return err
	}
	r.Time = t
	return nil
}
// UnmarshalJSON implements the unmarshaller interface.