Add test for #454
SPARKC-7: Refactor and fix predicate pushdown in SparkSQL code. Fixes #454.
Merge pull request #479 from datastax/wip-454

Wip 454 - Fix predicate pushdown in SparkSQL (NoSuchElementException)
Merge branch 'b1.1' of github.com:datastax/spark-cassandra-connector

Conflicts:
	CHANGES.txt