Bump up fasterxml jackson lib to 2.7.0 and clean up dependencies

Change-Id: I43d672a1f275ef7108b5dd416f3f120485823d0f
diff --git a/tools/package/maven-plugin/pom.xml b/tools/package/maven-plugin/pom.xml
index ebf67d5..c7a9e3a 100644
--- a/tools/package/maven-plugin/pom.xml
+++ b/tools/package/maven-plugin/pom.xml
@@ -79,12 +79,12 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.6.4</version>
+            <version>2.7.0</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-annotations</artifactId>
-            <version>2.6.4</version>
+            <version>2.7.0</version>
         </dependency>
         <dependency>
             <groupId>commons-io</groupId>