commit 21380280677b2e284b1efc2c73654ec3fc538b42
author jerryshao <sshao@hortonworks.com> Tue Aug 15 13:40:54 2017 +0800
committer jerryshao <sshao@hortonworks.com> Tue Aug 15 13:40:54 2017 +0800
tree c42a5245f4ef4fd491b8e7b8ad32a184ddc5e4a1
parent a4760c6683b4642fb388d2adbd4cd03ff557cb64

[LIVY-389][BUILD] Add maven plugin to generate license for all the dependencies

This change will generate a THIRD-PARTY file with license of all dependencies in `${execution.root}` folder, and will copy it to release assembly's root dir.

lresende ajbozarth can you please review the current solution, is it OK for an Apache way.

Here is the snippet of this THIRD-PARTY file:

```
===============================================================================

APACHE LIVY SUBCOMPONENTS:

The Apache Livy binary distribution includes a number of subcomponents
with separate copyright notices and license terms. Your use of the
code for the these subcomponents is subject to the terms and
conditions of the following licenses.

===============================================================================

We have listed all of these third party libraries and their licenses
below. This file can be regenerated at any time by simply running:

    mvn clean package

---------------------------------------------------
Third party Java libraries listed by License type.

PLEASE NOTE: Some dependencies may be listed under multiple licenses if they
are dual-licensed. This is especially true of anything listed as
"GNU General Public Library" below.
---------------------------------------------------

  ASL:

    * json4s-ast (org.json4s:json4s-ast_2.10:3.2.10 - https://github.com/json4s/json4s)
    * json4s-core (org.json4s:json4s-core_2.10:3.2.10 - https://github.com/json4s/json4s)
    * json4s-jackson (org.json4s:json4s-jackson_2.10:3.2.10 - https://github.com/json4s/json4s)

  Apache 2:

    * Apache Derby Database Engine and Embedded JDBC Driver (org.apache.derby:derby:10.10.2.0 - http://db.apache.org/derby/derby/)
    * JDO API (javax.jdo:jdo-api:3.0.1 - http://db.apache.org/jdo)
    * JavaEWAH (com.googlecode.javaewah:JavaEWAH:0.3.2 - http://code.google.com/p/javaewah/)
    * Joda-Convert (org.joda:joda-convert:1.6 - http://www.joda.org/joda-convert/)
    * Joda-Time (joda-time:joda-time:2.3 - http://www.joda.org/joda-time/)
    * Objenesis (org.objenesis:objenesis:1.2 - http://objenesis.googlecode.com/svn/docs/index.html)
    * RoaringBitmap (org.roaringbitmap:RoaringBitmap:0.5.11 - https://github.com/lemire/RoaringBitmap)
    * breeze (org.scalanlp:breeze_2.10:0.11.2 - http://scalanlp.org/)
    * breeze-macros (org.scalanlp:breeze-macros_2.10:0.11.2 - http://scalanlp.org/)
    * chill (com.twitter:chill_2.10:0.5.0 - https://github.com/twitter/chill)
    * chill-java (com.twitter:chill-java:0.5.0 - https://github.com/twitter/chill)
    * metrics-scala (nl.grons:metrics-scala_2.10:3.3.0_a2.3 - https://github.com/erikvanoosten/metrics-scala)
    * opencsv (net.sf.opencsv:opencsv:2.3 - http://opencsv.sf.net)
    * scala-ssh (com.decodified:scala-ssh_2.10:0.7.0 - https://github.com/sirthias/scala-ssh)
    * sshj (net.schmizz:sshj:0.10.0 - http://github.com/shikhar/sshj)

  Apache 2.0 License:

    * Spark Project Bagel (org.apache.spark:spark-bagel_2.10:1.6.2 - http://spark.apache.org/)
    * Spark Project Catalyst (org.apache.spark:spark-catalyst_2.10:1.6.2 - http://spark.apache.org/)
    * Spark Project Core (org.apache.spark:spark-core_2.10:1.6.2 - http://spark.apache.org/)
    * Spark Project GraphX (org.apache.spark:spark-graphx_2.10:1.6.2 - http://spark.apache.org/)
    * Spark Project Hive (org.apache.spark:spark-hive_2.10:1.6.2 - http://spark.apache.org/)
    * Spark Project Launcher (org.apache.spark:spark-launcher_2.10:1.6.2 - http://spark.apache.org/)
    * Spark Project ML Library (org.apache.spark:spark-mllib_2.10:1.6.2 - http://spark.apache.org/)
    * Spark Project Networking (org.apache.spark:spark-network-common_2.10:1.6.2 - http://spark.apache.org/)
    * Spark Project REPL (org.apache.spark:spark-repl_2.10:1.6.2 - http://spark.apache.org/)
    * Spark Project SQL (org.apache.spark:spark-sql_2.10:1.6.2 - http://spark.apache.org/)
    * Spark Project Shuffle Streaming Service (org.apache.spark:spark-network-shuffle_2.10:1.6.2 - http://spark.apache.org/)
    * Spark Project Streaming (org.apache.spark:spark-streaming_2.10:1.6.2 - http://spark.apache.org/)
    * Spark Project Unsafe (org.apache.spark:spark-unsafe_2.10:1.6.2 - http://spark.apache.org/)
    * Spark Project YARN (org.apache.spark:spark-yarn_2.10:1.6.2 - http://spark.apache.org/spark-yarn_2.10/)

  Apache License:

    * HttpClient (commons-httpclient:commons-httpclient:3.1 - http://jakarta.apache.org/httpcomponents/httpclient-3.x/)
    * Tachyon Clients - Distribution (org.tachyonproject:tachyon-client:0.8.2 - http://tachyon-project.org/tachyon-clients/tachyon-client/)
    * Tachyon Under File System - HDFS (org.tachyonproject:tachyon-underfs-hdfs:0.8.2 - http://tachyon-project.org/tachyon-underfs/tachyon-underfs-hdfs/)
    * Tachyon Under File System - Local FS (org.tachyonproject:tachyon-underfs-local:0.8.2 - http://tachyon-project.org/tachyon-underfs/tachyon-underfs-local/)
    * Tachyon Under File System - S3 (org.tachyonproject:tachyon-underfs-s3:0.8.2 - http://tachyon-project.org/tachyon-underfs/tachyon-underfs-s3/)
```

Author: jerryshao <sshao@hortonworks.com>

Closes #34 from jerryshao/LIVY-389-third-party.