fixed vishnu check verison
Release : SDS-2.RC3 Setting vishnu version to 4.0.0.RC15
Release : SDS-2.RC3 Setting vishnu version to 4.0.0-SNAPSHOT
fixed problem in process exit code handling
fixed problem in process exit code handling: simplify previous commit
Release : SDS-2.RC4 Setting vishnu version to 4.0.0.RC16
Release : SDS-2.RC4 Setting vishnu version to 4.0.0-SNAPSHOT
Update documentation, and preparation for release 4.0.0 stable
o: Regenerate documentation