working branch to go to choco-3.2.0
depecrated instantiated()
upgrade the Choco constraints
Merge branch 'develop' into choco-3.2.0

Conflicts:
	CHANGES.md
upgrade search selectors
Merge branch 'choco-3.2.0' of github.com:sofdem/btrplace-solver into choco-3.2.0

Conflicts:
	choco/src/test/java/btrplace/solver/choco/DefaultReconfigurationProblemTest.java
Merge branch 'develop' into choco-3.2.0

Conflicts:
	CHANGES.md
update dependencies
optimize iffEq and impliesEq Choco constraints + upgrade retrieveIntVars
Merge pull request #46 from sofdem/choco-3.2.0

optimize iffEq and impliesEq Choco constraints + upgrade retrieveIntVars
- terminate the transition to choco-3.2.0
- remove the logback dependency