Was added descriptive headings titles to source code files

+/**
+ * Copyright © 2016-2018 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.thingsboard.server.controller;
 
 import org.junit.After;
@@ -15,6 +30,9 @@ import java.util.Arrays;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 import static org.thingsboard.server.dao.model.ModelConstants.NULL_UUID;
 
+/**
+ * Created by Victor Basanets on 8/27/2017.
+ */
 public abstract class BaseEntityViewControllerTest extends AbstractControllerTest {
 
     private Tenant savedTenant;

@@ -16,6 +16,7 @@
 package org.thingsboard.server.controller.nosql;
 
 import org.thingsboard.server.controller.BaseEntityViewControllerTest;
+
 /**
  * Created by Victor Basanets on 8/27/2017.
  */

@@ -17,6 +17,7 @@ package org.thingsboard.server.controller.sql;
 
 import org.thingsboard.server.controller.BaseEntityViewControllerTest;
 import org.thingsboard.server.dao.service.DaoSqlTest;
+
 /**
  * Created by Victor Basanets on 8/27/2017.
  */

+/**
+ * Copyright © 2016-2018 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.thingsboard.server.common.data;
 
 import lombok.EqualsAndHashCode;
@@ -8,6 +23,9 @@ import org.thingsboard.server.common.data.id.TenantId;
 
 import java.util.List;
 
+/**
+ * Created by Victor Basanets on 8/27/2017.
+ */
 @EqualsAndHashCode(callSuper = true)
 public class EntityView extends SearchTextBasedWithAdditionalInfo<EntityViewId>
         implements HasName, HasTenantId, HasCustomerId {

+/**
+ * Copyright © 2016-2018 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.thingsboard.server.common.data.id;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
@@ -6,9 +21,11 @@ import org.thingsboard.server.common.data.EntityType;
 
 import java.util.UUID;
 
+/**
+ * Created by Victor Basanets on 8/27/2017.
+ */
 public class EntityViewId extends UUIDBased implements EntityId {
 
-
     private static final long serialVersionUID = 1L;
 
     @JsonCreator