Fix int/bigint in CassandraStorage
Patch by Alex Liu, reviewed by brandonwilliams for CASSANDRA-6102
Merge branch 'cassandra-2.0' into trunk

Conflicts:
	src/java/org/apache/cassandra/hadoop/pig/AbstractCassandraStorage.java
	src/java/org/apache/cassandra/hadoop/pig/CassandraStorage.java
	src/java/org/apache/cassandra/hadoop/pig/CqlStorage.java
stress: add username/password authentication support

patch by Mikhail Stepura; reviewed by Aleksey Yeschenko for
CASSANDRA-6068
Merge branch 'cassandra-1.2' into cassandra-2.0
Merge branch 'cassandra-2.0' into trunk