[maven-release-plugin] copy for tag checkstyle-7.0

[maven-release-plugin] copy for tag checkstyle-6.19

[maven-release-plugin] copy for tag checkstyle-6.18

[maven-release-plugin] copy for tag checkstyle-6.17

[maven-release-plugin] copy for tag checkstyle-6.16.1

[maven-release-plugin] copy for tag checkstyle-6.16

[maven-release-plugin] copy for tag checkstyle-6.15

[maven-release-plugin] copy for tag checkstyle-6.14.1

[maven-release-plugin] copy for tag checkstyle-6.14

[maven-release-plugin] copy for tag checkstyle-6.13