[maven-release-plugin] prepare release tigase-utils-3.1.1
[maven-release-plugin] prepare release tigase-utils-3.1.1

git-svn-id: 78a0b1024db9beb524bc745052f6db0c395bb78f@505 20a39203-4b1a-0410-9ea8-f7f58976c10f

caiyingyuan/tigase-utils-71,caiyingyuan/tigase-utils-71