[maven-release-plugin] copy for tag gson-parent-2.4

[maven-release-plugin] copy for tag gson-2.4

[maven-release-plugin] copy for tag gson-2.3.1

[maven-release-plugin] copy for tag gson-2.3

[maven-release-plugin] copy for tag gson-2.2.4

[maven-release-plugin] copy for tag gson-2.2.3

[maven-release-plugin] copy for tag gson-2.2.2

[maven-release-plugin] copy for tag gson-2.2.1

[maven-release-plugin] copy for tag gson-2.2

[maven-release-plugin] copy for tag gson-2.1