[fix] PeerDao (hash not always set)

duniter4j-es-assembly/src/test/misc/movementByRange.sh

+#!/bin/sh
+curl -XPOST 'http://localhost:9200/gtest/movement/_search?pretty' -d '
+   {
+     "size": 1000,
+     "query": {
+        "bool": {
+            "filter": [
+                {"term": {"recipient" : "5ocqzyDMMWf1V8bsoNhWb1iNwax1e9M7VTUN6navs8of" }},
+                {"terms": {"code" : ["MEMBER_JOIN","MEMBER_ACTIVE","MEMBER_LEAVE","MEMBER_EXCLUDE","MEMBER_REVOKE"] }}
+            ]
+        }
+     },
+      "aggs": {
+         "tx": {
+           "range": {
+             "field" : "medianTime",
+             "ranges" : [
+                 { "from" : 0, "to" : 1492041600 }
+             ]
+           },
+            "aggs" : {
+                "received" : {
+                    "filter": {"term": {"recipient": "5ocqzyDMMWf1V8bsoNhWb1iNwax1e9M7VTUN6navs8of"}},
+                    "aggs": {
+                      "received_stats": {
+                        "stats": {
+                          "field": "amount"
+                        }
+                      }
+                    }
+                }
+            }
+         }
+       }
+   }'
+

duniter4j-es-assembly/src/test/misc/test_queries_graph.sh

+#!/bin/sh
+curl -XPOST 'http://gtest.data.duniter.fr:80/user/event/_search?pretty' -d '
+   {
+     "size": 1000,
+     "query": {
+        "bool": {
+            "filter": [
+                {"term": {"recipient" : "5ocqzyDMMWf1V8bsoNhWb1iNwax1e9M7VTUN6navs8of" }},
+                {"terms": {"code" : ["MEMBER_JOIN","MEMBER_ACTIVE","MEMBER_LEAVE","MEMBER_EXCLUDE","MEMBER_REVOKE"] }}
+            ]
+        }
+     },
+     "sort" : [
+       { "time" : {"order" : "desc"}}
+     ],
+     _source: ["code", "time"]
+   }'
+

duniter4j-es-core/src/main/java/org/duniter/elasticsearch/dao/impl/PeerDaoImpl.java

@@ -57,7 +57,7 @@ public class PeerDaoImpl extends AbstractDao implements PeerDao {
         Preconditions.checkNotNull(peer);
         Preconditions.checkArgument(StringUtils.isNotBlank(peer.getId()));
         Preconditions.checkArgument(StringUtils.isNotBlank(peer.getCurrency()));
-        Preconditions.checkNotNull(peer.getHash());
+        //Preconditions.checkNotNull(peer.getHash());
         Preconditions.checkNotNull(peer.getHost());
         Preconditions.checkNotNull(peer.getApi());