Reverting back to 0.90.7 config/templates loading behaviour

Closes #4511

src/main/java/org/elasticsearch/cluster/metadata/MetaDataCreateIndexService.java

@@ -482,7 +482,7 @@ public class MetaDataCreateIndexService extends AbstractComponent {
                     try {
                         byte[] templatesData = Streams.copyToByteArray(templatesFile);
                         parser = XContentHelper.createParser(templatesData, 0, templatesData.length);
-                        IndexTemplateMetaData template = IndexTemplateMetaData.Builder.fromXContent(parser);
+                        IndexTemplateMetaData template = IndexTemplateMetaData.Builder.fromXContentStandalone(parser);
                         if (Regex.simpleMatch(template.template(), request.index)) {
                             templates.add(template);
                         }

src/test/java/org/elasticsearch/indices/template/IndexTemplateFileLoadingTests.java

@@ -58,7 +58,7 @@ public class IndexTemplateFileLoadingTests extends ElasticsearchIntegrationTest
 
             File dst = new File(templatesDir, "template.json");
             // random template, one uses the 'setting.index.number_of_shards', the other 'settings.number_of_shards'
-            String template = Streams.copyToStringFromClasspath("/org/elasticsearch/indices/template/template" + randomInt(1) + ".json");
+            String template = Streams.copyToStringFromClasspath("/org/elasticsearch/indices/template/template" + randomInt(2) + ".json");
             Files.write(template, dst, Charsets.UTF_8);
         } catch (Exception e) {
             throw new RuntimeException(e);

src/test/java/org/elasticsearch/indices/template/template0.json

@@ -1,7 +1,9 @@
 {
-    "template" : "foo*",
-    "settings" : {
-        "index.number_of_shards": 10,
-        "index.number_of_replicas": 0
-   }
+    "template_1" : {
+        "template" : "foo*",
+        "settings" : {
+            "index.number_of_shards": 10,
+            "index.number_of_replicas": 0
+        }
+    }
 }

src/test/java/org/elasticsearch/indices/template/template1.json

@@ -1,7 +1,9 @@
 {
-    "template" : "foo*",
-    "settings" : {
-        "number_of_shards": 10,
-        "number_of_replicas": 0
+    "template_1" : {
+        "template" : "foo*",
+        "settings" : {
+            "number_of_shards": 10,
+            "number_of_replicas": 0
+        }
     }
 }

src/test/java/org/elasticsearch/indices/template/template2.json

@@ -1,9 +1,11 @@
 {
-    "template" : "foo*",
-    "settings" : {
-        "index" : {
-            "number_of_shards": 10,
-            "number_of_replicas": 0
+    "template_1" : {
+        "template" : "foo*",
+        "settings" : {
+            "index" : {
+                "number_of_shards": 10,
+                "number_of_replicas": 0
+            }
         }
     }
 }