a possible workaround for #177
[Fix #182 - #183]

* Fix #182: Set propagators manage ISetDeltaMonitors
* Fix #183: change release script
Merge branch 'fix-earlyFailure' of https://github.com/fhermeni/choco3 into feature-issues
[Fix #177 - Fix #179]

- add a ContradictionException to NoPropagatioEngine to handle with empty domain variables
[Fix #173] modify default failure message in initial propagation
[Fix #172] patch Solver.retrieveXXXVars()
[Fix #171] define VF.MIN_INT_BOUND and VF.MAX_INT_BOUND
[Fix #170] update dependencies
Merge branch 'feature-issues' into develop