Add source and Javadoc to Kudu Java client
Add source and Javadoc to Kudu Java client

For easier development of clients, the Kudu Java client should have the
sources and Javadoc attached. This patch adds the necessary dependencies
to the pom file so that with `mvn package` sources and docs are attached.

Change-Id: If13b0cc00750e1b645420c3499390847b0be9437
Reviewed-on: http://gerrit.sjc.cloudera.com:8080/6346
Reviewed-by: Jean-Daniel Cryans <4bf4c125525b8623ac45dfd7774cbf531df19085@cloudera.com>
Tested-by: jenkins

EvilMcJerkface/kudu,andrwng/kudu,cloudera/kudu,cloudera/kudu,InspurUSA/kudu,EvilMcJerkface/kudu,InspurUSA/kudu,InspurUSA/kudu,cloudera/kudu,helifu/kudu,cloudera/kudu,EvilMcJerkface/kudu,helifu/kudu,InspurUSA/kudu,cloudera/kudu,helifu/kudu,EvilMcJerkface/kudu,InspurUSA/kudu,InspurUSA/kudu,EvilMcJerkface/kudu,cloudera/kudu,EvilMcJerkface/kudu,helifu/kudu,InspurUSA/kudu,helifu/kudu,helifu/kudu,cloudera/kudu,andrwng/kudu,InspurUSA/kudu,andrwng/kudu,andrwng/kudu,cloudera/kudu,cloudera/kudu,helifu/kudu,helifu/kudu,andrwng/kudu,EvilMcJerkface/kudu,helifu/kudu,andrwng/kudu,andrwng/kudu,andrwng/kudu,EvilMcJerkface/kudu,InspurUSA/kudu,andrwng/kudu,EvilMcJerkface/kudu