[maven-release-plugin] copy for tag classmate-1.5.1

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

[maven-release-plugin] copy for tag classmate-1.4.0

[maven-release-plugin] copy for tag classmate-1.3.4

[maven-release-plugin] copy for tag classmate-1.3.3

[maven-release-plugin] copy for tag classmate-1.3.2

[maven-release-plugin] copy for tag classmate-1.3.1

[maven-release-plugin] copy for tag classmate-1.3.0

[maven-release-plugin] copy for tag classmate-1.2.0

[maven-release-plugin] copy for tag classmate-1.1.0