Change the way score are grouped

app/src/androidTest/java/org/isoron/uhabits/unit/models/ScoreListTest.java

@@ -124,7 +124,7 @@ public class ScoreListTest
     {
         toggleRepetitions(0, 20);
 
-        int expectedValues[] = { 12629351, 11006461, 7272612, 2800230 };
+        int expectedValues[] = { 11434978, 7894999, 3212362 };
 
         int actualValues[] = habit.scores.getAllValues(7);
         assertThat(actualValues, equalTo(expectedValues));

app/src/main/java/org/isoron/uhabits/models/ScoreList.java

@@ -218,7 +218,7 @@ public class ScoreList
         compute(from, to);
 
         divisor *= DateHelper.millisecondsInOneDay;
-        Long offset = to + divisor - 1;
+        Long offset = to + divisor;
 
         String query = "select ((timestamp - ?) / ?) as time, avg(score) from Score " +
                 "where habit = ? and timestamp >= ? and timestamp <= ? " +