Fix the Spark 1.4+ Java customSchema example.
Fix the Spark 1.4+ Java customSchema example.

Author: Dennis Huo <dhuo@google.com>
Author: Dennis Huo <huoisme@gmail.com>

Closes #229 from dennishuo/master.

databricks/spark-csv,databricks/spark-csv,falaki/spark-csv,abridgett/spark-csv,abridgett/spark-csv,databricks/spark-csv,falaki/spark-csv,abridgett/spark-csv,falaki/spark-csv