Add more pig unit tests for type mappings.
Patch by Alex Liu, reviewed by brandonwilliams for CASSANDRA-6197
Merge branch 'cassandra-1.2' into cassandra-2.0
Merge branch 'cassandra-2.0' into trunk
match internal only filename to internal directory version
Merge branch 'cassandra-1.2' into cassandra-2.0
Merge branch 'cassandra-2.0' into trunk