Add nin support
Merge pull request #23 from stackmob/nin

Add nin support
bump to 1.3.0
[maven-release-plugin] prepare release stackmob-java-client-sdk-1.3.0
[maven-release-plugin] prepare for next development iteration
updated change log and readme
Merge branch 'master' of https://github.com/stackmob/stackmob-java-client-sdk into gy-ccsdk-changes