Update license docs for 0.7.0 release (#548)

* Remove gradle-wrapper.jar that should be downloaded
* Add gradlew and gradle/wrapper/gradle-wrapper.properties to LICENSE
* Add license header to Hive Metastore schema SQL file

LICENSE

@@ -203,6 +203,16 @@
 
 --------------------------------------------------------------------------------
 
+This product includes a gradle wrapper.
+
+* gradlew and gradle/wrapper/gradle-wrapper.properties
+
+Copyright: 2010-2019 Gradle Authors.
+Home page: https://github.com/gradle/gradle
+License: http://www.apache.org/licenses/LICENSE-2.0
+
+--------------------------------------------------------------------------------
+
 This product includes code from Apache Avro.
 
 * Conversion in DecimalWriter is based on Avro's Conversions.DecimalConversion.

gradlew

@@ -64,6 +64,10 @@ case "`uname`" in
     ;;
 esac
 
+if [ ! -e $APP_HOME/gradle/wrapper/gradle-wrapper.jar ]; then
+    curl -o $APP_HOME/gradle/wrapper/gradle-wrapper.jar https://raw.githubusercontent.com/gradle/gradle/v5.4.1/gradle/wrapper/gradle-wrapper.jar
+fi
+
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
 # Determine the Java command to use to start the JVM.

hive/src/test/resources/hive-schema-3.1.0.derby.sql

@@ -1,3 +1,24 @@
+--
+-- 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.
+--
+-- This file was copied from Apache Hive, at:
+-- https://github.com/apache/hive/blob/master/standalone-metastore/metastore-server/src/main/sql/derby/hive-schema-3.1.0.derby.sql
+--
+-- This has been modified slightly for compatibility with older Hive versions.
+--
 -- Timestamp: 2011-09-22 15:32:02.024
 -- Source database is: /home/carl/Work/repos/hive1/metastore/scripts/upgrade/derby/mdb
 -- Connection URL is: jdbc:derby:/home/carl/Work/repos/hive1/metastore/scripts/upgrade/derby/mdb