Cleaned up access group garbage tracking logic
Reverted back to single cell cache in access group
Fixed QFS broker
Fixed alloc/dealloc mismatch in Hypertable-shell-ldi-select test
Added package_gcc.bash to src-utils
issue 1193: Fixed bug in RangeServer::log_replay()
Upgraded to CDH4.6
Throw exception on invalid key timestamp (TIMESTAMP_NULL) in TableMutatorAsync
issue 1202: If target of RENAME TABLE exists, terminate operation with error
Set SO_KEEPALIVE on TCP sockets