updated dependencies, removed explicit dependency on memory

pom.xml

@@ -145,13 +145,7 @@
     <dependency>
       <groupId>com.yahoo.datasketches</groupId>
       <artifactId>sketches-core</artifactId>
-      <version>0.10.1</version>
-    </dependency>
-
-    <dependency>
-      <groupId>com.yahoo.datasketches</groupId>
-      <artifactId>memory</artifactId>
-      <version>0.10.3</version>
+      <version>0.10.2</version>
     </dependency>
 
     <!-- Pig -->
@@ -399,7 +393,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.20</version>
+        <version>2.20.1</version>
         <configuration>
           <!-- locale settings must be set on the command line before startup -->
           <!-- set heap size to work around https://github.com/travis-ci/travis-ci/issues/3396 -->
@@ -427,7 +421,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-dependency-plugin</artifactId>
-          <version>3.0.1</version>
+          <version>3.0.2</version>
         </plugin>
 
         <plugin>