HUDI-121 : Address comments during RC2 voting

1. Remove dnl utils jar from git
2. Add LICENSE Headers in missing files
3. Fix NOTICE and LICENSE in all HUDI packages and in top-level
4. Fix License wording in certain HUDI source files
5. Include non java/scala code in RAT licensing check
6. Use whitelist to include dependencies as part of timeline-server bundling

scripts/release/generate_jar_path.py

@@ -0,0 +1,39 @@
+#!/usr/bin/python
+
+#
+# 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.
+#
+
+import fileinput
+import sys
+import os
+
+for line in fileinput.input():
+  line = line.rstrip()
+  cols = line.split(":")
+  classifier = ""
+  scope = ""
+  pkg = ""
+  type = ""
+  version = ""
+  if len(cols) == 4:
+   (scope,pkg,type,version) = cols
+  else:
+   (scope,pkg,type,classifier,version) = cols
+   classifier = "-{}".format(classifier)
+  path = "{5},{6}/.m2/repository/{0}/{1}/{2}/{1}-{2}{3}.{4}".format(scope.replace(".","/"), pkg, version,classifier,type, line, os.environ['HOME'])
+  print path
+