[ELNS] fix wrong instructions
[SearchLoop] fix reset() method
[versio] udpate version message
[bug]Issue #111 fixed
[feature] add "sequencer" to IntStrategySequencer
[feature] exemplify LNS + add methods in Solver to retrieve a kind of variables (INT, SET, BOOL,GRAPH,REAL)
[mvn] prepare release, update version number
[mvn] generate sources for choco-samples + move AbstractProblem to solver
Merge branch 'feature-bug-bf-release' into develop