release 0.52.0 (#337)

release 0.51.0 (#333)

release 0.50.2 (#329)

release 0.50.1 (#326)

update version in readme

release 0.49.0 (#320)

* release 0.49.0

* fix cargo.lock

release 0.48.0 (#318)

release 0.47 (#315)

* release 0.47

* cargo check

release 0.46.1 (#313)

release 0.46.0 (#309)

* release 0.46.0

* update Cargo.lock