o: minor bugfixes and style fixes
o: refactoring
o: remove error-prone use of boolean arrays to check if a service is machine specific or not
o: minor perf fix in mungeUtils
removed mungeUtils not longer necessary
Release : SDS-3.RC1 Setting vishnu version to 4.0.0.RC17
Release : SDS-3.RC1 Setting vishnu version to 4.0.0-SNAPSHOT
b:Do not retry 3 times with ping, do not display communication errors if disabled, fix add work regression
o: Small fixes to enhance robustness