[maven-release-plugin] copy for tag synckv-0.6.0

[maven-release-plugin] copy for tag synckv-0.5.1

[maven-release-plugin] copy for tag synckv-0.5.0

[maven-release-plugin] copy for tag synckv-0.4.1

[maven-release-plugin] copy for tag synckv-0.4.0

[maven-release-plugin] copy for tag synckv-0.3.0

[maven-release-plugin] copy for tag synckv-0.2.1

[maven-release-plugin] copy for tag synckv-0.2.0

[maven-release-plugin] copy for tag synckv-0.1.6

[maven-release-plugin] copy for tag synckv-0.1.5