[maven-release-plugin] copy for tag flickr4java-2.12

[maven-release-plugin] copy for tag flickr4java-2.11

[maven-release-plugin] copy for tag flickr4java-2.10

[maven-release-plugin] copy for tag flickr4java-2.9

Release version 2.8

[maven-release-plugin] copy for tag flickr4java-2.7

[maven-release-plugin] copy for tag flickr4java-2.6

[maven-release-plugin] copy for tag flickr-2.5