[maven-release-plugin] prepare release v0.3.1
[maven-release-plugin] prepare release v0.3.1

hierynomus/sshj,hierynomus/sshj,Juraldinio/sshj,juddgaddie/sshj,Boris-de/sshj,joprsal/sshj,bluekeyes/sshj,cloudera/sshj