[SPARK-10516][ MLlib]Added values property in DenseVector

[vinodkc]

No description provided.

[SparkQA]

Test build #42238 has finished for PR 8682 at commit b8e1e6e.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[mengxr]

We should add it as a @property method instead of a field. Otherwise, it might introduce overhead with serialization.

[SparkQA]

Test build #42525 has finished for PR 8682 at commit b77e420.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[mengxr]

LGTM. Merged into master. @vinodkc values needs API doc, alone with some other public methods. I created a JIRA for it: https://issues.apache.org/jira/browse/SPARK-10631. Could you help add them? Thanks!

[vinodkc]

Sure I'll work on SPARK-10631
Thanks