DATACMNS-867 - Fixed type on Sort.isUnsorted().

Author: odrotbohm

src/main/java/org/springframework/data/domain/Sort.java

@@ -197,7 +197,7 @@ public boolean isSorted() {
 		return !orders.isEmpty();
 	}
 
-	public boolean isUnorted() {
+	public boolean isUnsorted() {
 		return !isSorted();
 	}