Update readme.
Add support for multi-os.
Merge branch 'master' of http://github.com/nii-cloud/dodai-deploy
Refactoring setup-env.
Refactoring setup-env.
Change hadoop version from 0.20.2 to 0.22.0
Fixed bug related to setup all in one.
Modify test.sh for hadoop.0.22.0.
Update readme.
Update puppet version to latest 1.7.x.