Improving code quality
Improving code quality: LZ09 problems refactorized
Refactoring the wrapper package. Now it belongs to jmetal.encoding.solutionType
Refactored: class Variable and a large amount of related classes
Reorganizing classes
Refactoring class Variable and related classes
Improving unit tests in classes IntTest and RealTest
Improving unit tests
Fixed a bug in ArrayRealTest