Moving license to top of file and combings usings into one location
diff --git a/src/Lucene.Net.Core/Index/TaskMergeScheduler.cs b/src/Lucene.Net.Core/Index/TaskMergeScheduler.cs
index f82b145..f43b243 100644
--- a/src/Lucene.Net.Core/Index/TaskMergeScheduler.cs
+++ b/src/Lucene.Net.Core/Index/TaskMergeScheduler.cs
@@ -1,34 +1,31 @@
-using System;
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+using Lucene.Net.Support;
+using Lucene.Net.Util;
+using System;
using System.Collections.Generic;
+using System.Linq;
using System.Text;
using System.Threading;
+using System.Threading.Tasks;
+using Directory = Lucene.Net.Store.Directory;
namespace Lucene.Net.Index
{
- using Lucene.Net.Support;
- using System.Linq;
- using System.Threading.Tasks;
- using Util;
-
- /*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You 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.
- */
-
- using Directory = Lucene.Net.Store.Directory;
-
/// <summary>
/// A <seealso cref="MergeScheduler"/> that runs each merge using
/// Tasks on the default TaskScheduler.
