Merge branch 'master' of git@github.com:DataSketches/sketches-core.git

Author: lrhodes

pom.xml

@@ -325,13 +325,13 @@
               <plugin>
                   <groupId>org.apache.maven.plugins</groupId>
                   <artifactId>maven-compiler-plugin</artifactId>
-                  <version>3.6.2</version>
+                  <version>3.7.0</version>
               </plugin>
 
               <plugin>
                   <groupId>org.apache.maven.plugins</groupId>
                   <artifactId>maven-dependency-plugin</artifactId>
-                  <version>3.0.1</version>
+                  <version>3.0.2</version>
               </plugin>
 
               <plugin>
@@ -391,7 +391,7 @@
               <plugin>
                   <groupId>org.apache.maven.plugins</groupId>
                   <artifactId>maven-surefire-plugin</artifactId>
-                  <version>2.20</version>
+                  <version>2.20.1</version>
               </plugin>
 
               <!-- OTHER -->