Solve errors in UtilsTest: data conversion from json to csv round value at 15...

Solve errors in UtilsTest: data conversion from json to csv round value at 15 digits -> difference in results

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

@@ -87,7 +87,7 @@ public class UtilsTest {
             solution.computeScoreTo(data, expected);
             population.add(solution);
         }
-        assertEquals(8.668597844797882, Utils.findMinDistance(population));
+        assertEquals(8.711253443518487, Utils.findMinDistance(population));
     }
 
     @Test
@@ -101,7 +101,7 @@ public class UtilsTest {
             solution.computeScoreTo(data, expected);
             population.add(solution);
         }
-        assertEquals(34.18904600152107, Utils.findMaxDistance(population));
+        assertEquals(34.19026361097594, Utils.findMaxDistance(population));
     }
 
     @Test
@@ -115,7 +115,7 @@ public class UtilsTest {
             solution.computeScoreTo(data, expected);
             population.add(solution);
         }
-        assertEquals(781.5916287000892, Utils.sumTotalDistance(population));
+        assertEquals(782.4821943222399, Utils.sumTotalDistance(population));
     }
 
     @Test