[maven-release-plugin] copy for tag xchange-3.1.0

[maven-release-plugin] copy for tag xchange-3.0.0

[maven-release-plugin] copy for tag xchange-2.1.0

[maven-release-plugin] copy for tag xchange-2.0.0

[maven-release-plugin] copy for tag xchange-1.10.0

[maven-release-plugin] copy for tag xchange-1.9.0

[maven-release-plugin] copy for tag xchange-1.8.0

[maven-release-plugin] copy for tag xchange-1.7.0

[maven-release-plugin] copy for tag xchange-1.6.0

[maven-release-plugin] copy for tag xchange-1.5.0