Refactoring. double[] change to List<Double>

ressources/webshell_data_list.json

ressources/webshell_expected_list.json

src/main/java/be/cylab/java/wowa/training/Convert.java

src/main/java/be/cylab/java/wowa/training/SolutionAUC.java

...in/java/be/cylab/java/wowa/training/SolutionDistance.java

src/main/java/be/cylab/java/wowa/training/Utils.java

...ava/be/cylab/java/wowa/training/SolutionDistanceTest.java

src/test/java/be/cylab/java/wowa/training/TrainerTest.java