[maven-release-plugin] prepare for next development iteration

[maven-release-plugin] copy for tag zuul-parent-1.7.0

[maven-release-plugin] copy for tag 1.6.0

[maven-release-plugin] copy for tag 1.5.1

[maven-release-plugin] copy for tag 1.5

[maven-release-plugin] copy for tag 1.4.1

[maven-release-plugin] copy for tag 1.4

[maven-release-plugin] copy for tag 1.3

[maven-release-plugin] copy for tag 1.2.1

[maven-release-plugin] copy for tag 1.2