Integer overflow in OffHeapBitSet when bloomfilter > 2GB
patch by Vijay; reviewed by jbellis for CASSANDRA-5903
Merge branch 'cassandra-1.2' into cassandra-2.0.0
Merge branch 'cassandra-2.0.0' into cassandra-2.0
edit changes.txt for CASSANDRA-5903
Merge branch 'cassandra-1.2' into cassandra-2.0.0
Merge branch 'cassandra-2.0.0' into cassandra-2.0