[maven-release-plugin] copy for tag 1.7.3

[maven-release-plugin] copy for tag 1.7.2

[maven-release-plugin] copy for tag 1.7.1

updated README

[maven-release-plugin] copy for tag 1.6.3

[maven-release-plugin] copy for tag 1.6.2

[maven-release-plugin] copy for tag 1.6.1

[maven-release-plugin] copy for tag 1.6.0

[maven-release-plugin] copy for tag 1.5.4

[maven-release-plugin] copy for tag 1.5.3