Release 7.1.0

[maven-release-plugin] copy for tag spoon-core-7.0.0

[maven-release-plugin] copy for tag spoon-core-6.2.0

[maven-release-plugin] copy for tag spoon-core-6.1.0

[maven-release-plugin] copy for tag spoon-core-6.0.0

[maven-release-plugin] copy for tag spoon-core-5.9.0

[maven-release-plugin] copy for tag spoon-core-5.8.0

[maven-release-plugin] copy for tag spoon-core-5.7.0

[maven-release-plugin] copy for tag spoon-core-5.6.0

[maven-release-plugin] copy for tag spoon-core-5.5.0