DATAES-140 add value "no" in Enum FieldIndex.

Author: avolz

src/main/java/org/springframework/data/elasticsearch/annotations/FieldIndex.java

@@ -18,7 +18,9 @@
 /**
  * @author Artur Konczak
  * @author Mohsin Husen
+ * @author Alexander Volz
+ * @author Dennis Maaß
  */
 public enum FieldIndex {
-	not_analyzed, analyzed
+    not_analyzed, analyzed, no
 }