[maven-release-plugin] copy for tag dspace-8.1

[maven-release-plugin] copy for tag dspace-7.6.3

[maven-release-plugin] copy for tag dspace-7.6.2

[maven-release-plugin] copy for tag dspace-8.0

[maven-release-plugin] copy for tag dspace-8.0-rc1

[maven-release-plugin] copy for tag dspace-7.6.1

[maven-release-plugin] copy for tag dspace-7.6

[maven-release-plugin] copy for tag dspace-7.5

[maven-release-plugin] copy for tag dspace-7.4

[maven-release-plugin] copy for tag dspace-6.4