chore: upgrade to 0.7.2 (#50)

chore: update deps (#42)

chore: prelease 0.6

prepare release 0.5.3.

Merge pull request #14 from rsocket/feature/messaging

Feature/messaging

change next version to 0.5.2.

fix deps.

Merge pull request #4 from rsocket/develop

Develop

Merge pull request #3 from rsocket/feature/routing_metadata

Feature/routing metadata

Merge pull request #2 from rsocket/feature/async_await

Feature/async await