2.5.0 - 2019/09/28

- DateTime now has standard derive Clone and Debug
  - Fixed ffi struct.
  - Now opaque.
- xmp_iterator_new() now take a const Xmp
- XmpIterator::next() outputs a PropFlags, not an IterFlags
- Xmp::set_array_item() was missing.
- Xmp is now Send.
- exempi::init() will run only once.
- Add exempi::force_init().
- A more Rust like API returning Result<>.
- Update URL for crate.

2.4.4 - 2017/09/17

- ArrayFlags and ItemFlags are merged with PropFlags
- API adjustments

2.4.3 - 2017/06/20

-TzSign is public

2.4.2 - 2017/06/20

-XmpDateTime: the c struct is public.

2.4.1 - 2017/06/04

-XmpIterator::new() declaration was wrong. Also xmp_iterator_new()
-Export NS_* from the -sys crate.

2.4.0 - 2017/01/07

-Added WEBP type.

2.3.0 - 2016/03/22

-Initial release.
