Merge pull request #532 from jasonjckn/0.9.0-ibackingmap

MicroBatchIBackingMap: avoid store timeouts on multiput and multiget
Merge pull request #11 from nathanmarz/master

merge changes from nathanmarz/storm master
Netty based implementation for storm messaging
move storm-netty into its own module
fix indention
remove netty dependency from storm-core/project.clj
Merge pull request #12 from nathanmarz/master

merge changes from nathanmarz/storm master
TaskMessage enhanced to enable null payload
fixed test program and resource management
extra import removed from Context.java
project.clj fixed for module build
control request batch size per buffer spec; and 1 ack for each batch
Client rejects any request after its close() method has been invoked
remove usage of immutablemap in systembolt.
it was causing kryo deserialization issues because immutablemap is not
registered with kryo.
Merge pull request #564 from jasonjckn/0.9.0

remove usage of immutablemap in systembolt.
use ControlMessage instead of previous TaskMessage hack
Ignore NoNodeExists exceptions
ControlMessage reorgnized for better readability
debug message removed
encoder code revised for readibility