Updated for new CSPOM/Concrete API
Merge branch 'master' of https://github.com/concrete-cp/concrete-examples

Conflicts:
	src/main/java/allDiffDec/AllDiffDec.java
	src/main/java/pigeons/Pigeons.java
	src/main/java/queens/Queens.java
	src/main/java/rb/RBGenerator.java
Moved StatisticsManager and Loggable to CSPOM. Working on optimization
of ProblemCompiler.