upgrade spark version (#3138)

pom.xml

@@ -172,7 +172,7 @@
         <collections.version>3.2.1</collections.version>
         <scoverage.plugin.version>1.1.1</scoverage.plugin.version>
         <spark-version.project>2.0</spark-version.project>
-        <spark.version>2.4.3</spark.version>
+        <spark.version>2.4.6</spark.version>
         <breeze.version>0.13.2</breeze.version>
         <spark-scope>provided</spark-scope>
 
@@ -545,7 +545,7 @@
                 <java.version>1.8</java.version>
                 <javac.version>1.8</javac.version>
                 <spark-version.project>2.0</spark-version.project>
-                <spark.version>2.4.3</spark.version>
+                <spark.version>2.4.6</spark.version>
                 <scala.major.version>2.11</scala.major.version>
                 <scala.version>2.11.8</scala.version>
                 <scala.macros.version>2.1.0</scala.macros.version>

pyspark/setup.py

@@ -89,7 +89,7 @@ def setup_package():
         license='Apache License, Version 2.0',
         url='https://github.com/intel-analytics/Bigdl',
         packages=get_bigdl_packages(),
-        install_requires=['numpy>=1.7', 'pyspark==2.4.3', 'six>=1.10.0'],
+        install_requires=['numpy>=1.7', 'pyspark==2.4.6', 'six>=1.10.0'],
         dependency_links=['https://d3kbcqa49mib13.cloudfront.net/spark-2.0.0-bin-hadoop2.7.tgz'],
         include_package_data=True,
         package_data={"bigdl.share": ['bigdl/share/lib', 'bigdl/share/conf', 'bigdl/share/bin']},

spark/dl/pom.xml

@@ -24,7 +24,7 @@
         <dependency>
             <groupId>org.apache.opennlp</groupId>
             <artifactId>opennlp-tools</artifactId>
-            <version>1.6.0</version>
+            <version>1.8.2</version>
         </dependency>
         <dependency>
             <groupId>com.twelvemonkeys.imageio</groupId>