Activated octree culling logic as a default
Wide spread bug fixes related to occlusion culling and GPU resource management
Implemented logic to automatically enable alpha blending for materials that do not contain an alpha blending statement but have a material-level opacity value set less than 1.0
Extended the krobject file format to 256 characters for material names.
Added logic to prevent exported krobject files from being corrupted when long material names are used.
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Implementation of logic to allow dynamic loading and unloading of meshes and models for scenes larger than RAM in progress
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Refactored scene graph notification system structures to be owned by the KRScene object
Merged Mike's changes
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Created structures for alpha transparency and occlusion culling
Fixed memory allocation issue in KREngine.mm (pointer to NSDictionary allocated on stack retained and later dereferenced when popped)
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Now able to dynamically switch between shaders for lights and objects
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