setup maven

[maven-release-plugin] copy for tag twitterwall2-1.0.27

[maven-release-plugin] copy for tag twitterwall2-1.0.26

[maven-release-plugin] copy for tag twitterwall2-1.0.25

[maven-release-plugin] copy for tag twitterwall2-1.0.24

[maven-release-plugin] copy for tag twitterwall2-1.0.23

[maven-release-plugin] copy for tag twitterwall2-1.0.22

[maven-release-plugin] copy for tag twitterwall2-1.0.21

[maven-release-plugin] copy for tag twitterwall2-1.0.20

[maven-release-plugin] copy for tag twitterwall2-1.0.19