ENH: Implement LableMetaList function. This commit requires OpenIGTLink library commit 661d4bd.
Merge pull request #12 from tokjun/0003454-lbmeta

ENH: Implement LableMetaList function to address issue #11.
STYLE: Remove obsolete functions related to slice driving (this has been replaced by VolumeResliceDriver module.)
STYLE: Remove unnecessary prototypes.
BUG: Remove vtkMRMLNode element in NodeInforType to avoid memory access error.
Merge pull request #13 from tokjun/3473-crash-after-deleting-incoming-node

3473 crash after deleting incoming node
ENH: Pass the address of the new MRML node to event handlers, when the NewDeviceEvent event is invoked. For Slicer Bug Report 0003478 and request in https://github.com/SlicerIGT/OpenIGTLinkRemote/issues/16
COMP: Include vtkObjectFactory.h to address compile error reported in Slicer bug tracking #3493.
Merge pull request #15 from tokjun/3493-include-vtkObjectFactory-h

COMP: Include vtkObjectFactory.h to address compile error reported in Slicer bug tracking #3493.
ENH: Push outgoing messages when the connector node becomes active and OpenIGTLinkIF.pushOnConnect attribute is 1. See Slicer Bug Tracker #3501.
ENH: Update vtkMRMLIGTLConnectorNode::PushNode() to prevent other connector nodes from sending the pushed node.
ENH: Add 'Push on Connect' checkbox in I/O configuration. Rename 'pushOnConnection' attribute to 'pushOnConnect' (value must be either 'true' or 'false')
ENH: Hide 'Push on Connect' check buttons for incoming nodes.
Fixed memory corruption issues that caused random hangs when loading a scene with an active OpenIGTLink connection
Fixed crash when opening a scene containing IGTLConnectorNode
Merge pull request #16 from lassoan/master

Fixed memory corruption issues that caused hanging on scene load
Merge pull request #17 from tokjun/3478-IGTLConnectorNode-NewDeviceEvent-improvement

ENH: Pass the address of the new MRML node to event handlerson NewDeviceEvent.
ENH: Fix vtkMRMLIGTLConnectorNode.cxx to merge 3501-send-all-outputs-on-connection branch.
BUG: Call this->qvtkDisconnectAll() from qMRMLIGTLIOModel() destructor to address #2431 as suggested by Lchauvin.
Merge pull request #19 from tokjun/2431-no-such-slot-error-in-qMRMLIGTLIOModel

BUG: Call this->qvtkDisconnectAll() from qMRMLIGTLIOModel()