DATACOUCH-199 - Make automatic index creation opt-in

In addition to annotating the repository with xxxIndexed annotations, user must now opt-in to the feature by redefining the indexManager bean in the configuration. This is so production use of this feature is actively discouraged.

src/test/java/org/springframework/data/couchbase/UnitTestApplicationConfig.java

@@ -21,6 +21,7 @@ import org.springframework.data.couchbase.config.AbstractCouchbaseConfiguration;
 import org.springframework.data.couchbase.core.CouchbaseTemplate;
 import org.springframework.data.couchbase.core.WriteResultChecking;
 import org.springframework.data.couchbase.core.query.Consistency;
+import org.springframework.data.couchbase.repository.support.IndexManager;
 
 @Configuration
 public class UnitTestApplicationConfig extends AbstractCouchbaseConfiguration {
@@ -75,6 +76,12 @@ public class UnitTestApplicationConfig extends AbstractCouchbaseConfiguration {
     return template;
   }
 
+  //this is for dev so it is ok to auto-create indexes
+  @Override
+  public IndexManager indexManager() {
+    return new IndexManager();
+  }
+
   @Override
   protected Consistency getDefaultConsistency() {
     return Consistency.READ_YOUR_OWN_WRITES;