[kudu] Upgrade client dependency to Kudu 0.8.0

pom.xml

@@ -79,7 +79,7 @@ LICENSE file.
     <geode.version>1.0.0-incubating.M1</geode.version>
     <googlebigtable.version>0.2.3</googlebigtable.version>
     <infinispan.version>7.2.2.Final</infinispan.version>
-    <kudu.version>0.6.0</kudu.version>
+    <kudu.version>0.8.0</kudu.version>
     <openjpa.jdbc.version>2.1.1</openjpa.jdbc.version>
     <!--<mapkeeper.version>1.0</mapkeeper.version>-->
     <mongodb.version>3.0.3</mongodb.version>