Use getVersion=2 when retrieving settings

… except in offline sync where the legacy format is required for synonyms.

Fixes #157.

Author: Clément Le Provost

algoliasearch/src/main/java/com/algolia/search/saas/Index.java

@@ -458,7 +458,7 @@ public Request getSettingsAsync(@NonNull CompletionHandler completionHandler) {
         return getClient().new AsyncTaskRequest(completionHandler) {
             @NonNull
             @Override JSONObject run() throws AlgoliaException {
-                return getSettings();
+                return getSettings(2);
             }
         }.start();
     }
@@ -972,8 +972,8 @@ protected JSONObject waitTask(String taskID) throws AlgoliaException {
      *
      * @throws AlgoliaException
      */
-    protected JSONObject getSettings() throws AlgoliaException {
-        return client.getRequest("/1/indexes/" + encodedIndexName + "/settings", false);
+    protected JSONObject getSettings(int formatVersion) throws AlgoliaException {
+        return client.getRequest("/1/indexes/" + encodedIndexName + "/settings?getVersion=" + formatVersion, false);
     }
 
     /**

algoliasearch/src/offline/java/com/algolia/search/saas/MirroredIndex.java

@@ -457,7 +457,7 @@ public void run()
 
             // Fetch settings.
             {
-                JSONObject settingsJSON = this.getSettings();
+                JSONObject settingsJSON = this.getSettings(1);
                 settingsFile = new File(tmpDir, "settings.json");
                 String data = settingsJSON.toString();
                 Writer writer = new OutputStreamWriter(new FileOutputStream(settingsFile), "UTF-8");