[maven-release-plugin] prepare release zendesk-java-client-0.2.0
[maven-release-plugin] prepare release zendesk-java-client-0.2.0

cloudbees/zendesk-java-client,aduchon/zendesk-java-client,ydubreuil/zendesk-java-client,kuisathaverat/zendesk-java-client,gvh1234/zendesk-java-client,Hillgod/zendesk-java-client,jon-ruckwood/zendesk-java-client,dexequiel87/zendesk-java-client,matthewtckr/zendesk-java-client,norrisjeremy/zendesk-java-client,vector-portal-team/zendesk-java-client,christ66/zendesk-java-client