First attempt (after 2.1.0.0 release) to extend the Experiment visualization:

Extended the ExperimentStructure example file.
Added the ExperimentManager::setExperimentStructure slot
Added and integrated the class ExperimentTreeModel() and it's subclasses.
Minor ExperimentGraphEditor improvements...
fix to implement (forward declaration):

class ExperimentGraphicEditor;
class ExperimentTreeModel;
Implemented the new ExperimentStructureVisualizer (GraphViz)
intermediate commit...
intermediate commit...(2)
Improved and extended the ExperimentStructureVisualizer and the ExperimentGraphEditor
Started with the ExperimentParameterDefinitionContainer implementation
Improved and extended:

	ExperimentParameterVisualizer
	ExperimentStructureVisualizer
	ExperimentGraphEditor
Improved and extended:

	ExperimentStructureVisualizer
	ExperimentGraphEditor
Added the support for the parsing of Parameter DefinitionFiles (*.xdef)
Added a Parameter Property Extension class to support custom property editors

Added the RotationDirectionPropertyType and the StringArrayPropertyType
Improved the ExperimentParameterDefinitionContainer class
Added support for the (*.xdef) file types
Added extended support for property grouping in the ExperimentParameterVisualizer class
Added full support for the PolarAngle Retinotopic Mapping type in the RetinotopyMapper.xdef file
Added parsing of Grouping (including dependency def) definition functionality in (*.xdef) parameter definition file.

Fixed a dependency bug
-Added the ExperimentParameterWidgets class for singleton static parameterWidget storage and usage

-Improved the RetinoMapper Parameter Widget
-Fixed an layout bug/issue
Removed some bugs from the Retinotopic ExperimentParameterVisualizer

Added the possibility to edit Parameter settings (quickly through hashed values)
Fixed minor bugs from the Retinotopic ExperimentParameterVisualizer

Checked/fixed the Retinotopic ExperimentParameterVisualizer parameters for correct default value.
Added auto group hiding and group dependency functionality in (*.xdef) parameter definition file

Added the storage of parameter settings in the ExperimentTreeModel
Fixed/finalized some ParameterPropertyExtensions
Added the automatic appending of new (not set) parameters in the ExperimentTreeModel
Updated the RetinotopyMapper.xdef file
Changed Copyright Year to 2014

Added the needed Graphviz2.34 binaries to the InstallJammer project
Fixed a ParallelPort capture signal bug
Added the OgreLightNode class and the getLightSource() and setMaterialName() slot to the Ogre3d QML plugin.
Added and implemented some more definitions (*.xdef) for editing the (*.exml) file

Removed a ExperimentParameterVisualizer() bug