Switch plugin test-release to snapshot version
Switch datagen library to snapshot version
Switch datagen plugin to snapshot version
Switch datagen plugin to snapshot version
Switch datagen plugin to snapshot version
Switch library tokio to snapshot version
Switch plugin test-release from SNAPSHOT version to last stable version
Merge pull request #69 from codjo-sandbox/integration

For release 2.59
Switch libraries from snapshot to their future stabilized version
[maven-release-plugin] prepare release codjo-pom-2.59
[maven-release-plugin] prepare for next development iteration