| Copyrights in the "group" library are retained by their contributors. No |
| copyright assignment is required to contribute to the "group" library. |
| |
| The "group" library is licensed under either of |
| |
| * Apache License, Version 2.0, (see ./LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0) |
| * MIT license (see ./LICENSE-MIT or http://opensource.org/licenses/MIT) |
| |
| at your option. |
| |
| Unless you explicitly state otherwise, any contribution intentionally |
| submitted for inclusion in the work by you, as defined in the Apache-2.0 |
| license, shall be dual licensed as above, without any additional terms or |
| conditions. |