crates.io release 0.9.8

* Remove year from copyright notices.

crates.io release 0.9.7

* Specify a `links` value in the Cargo manifest.
* Emit an `include_dir` variable from build script so that other build scripts
  depending on this crate can rely on it.

crates.io release 0.9.6

* Fix a bug in the C++ header.

crates.io release 0.9.5

* Adjust documentation for encoding_rs 0.8.20.

crates.io release 0.9.4

* Fix bogus C header.

crates.io release 0.9.3

* Fix bogus C++ header.

crates.io release 0.9.2

* Wrap `Decoder::latin1_byte_compatible_up_to`.

crates.io release 0.9.1

* Wrap `Encoding::is_single_byte()`.
* Pass through new feature flags introduced in encoding_rs 0.8.11.

crates.io release 0.9.0

crates.io release 0.8.0

* Update to encoding_rs 0.7.0.
* Drop `encoding_for_name()`.
* Deal correctly with the `data()` method of `gsl::span` returning `nullptr`.