Fixed bug in kill task in conf/core.tasks
Modified CommandShell to exit with return status of last command
Addded Error::INVALID_METHOD_IDENTIFIER
issue 1328: Allow hyphen in hostnames in HostSpecification
issue 1330: Added tasks to core.tasks for starting/stopping Ganglia
1328: Fixed variable expansion problem in cluster.def role definiton
issue1329: Fixed problem with compressor spec in old table Schema
Added java HostSpecification class
issue1332: Made ThriftBroker host/port configurable in MapReduce connectors
Fixed crash in load_generator with word stream
Propagate table defaults from primary table to index tables
Added packaging support for Yosemite and next few versions of OSX
Cleaned up default hypertable.cfg file
Updated for 0.9.8.4 release