Opencolorio

* Python binding enhancements
* Simplified class implmentations (reduced internal header count)

* GPU Processing now supports High Dynamic Range color spaces
* Added log processing operator
* Numerous bug fixes
* Numerous enhancements to python glue
* Exposed PyOpenColorIO header, for use in apps that require custom python glue
* Matrix op is optimized for diagonal-only subcases
* Numerous changes to Nuke Plugin (now with an addition node, OCIODisplay)

* Additional DisplayTransform improvements
* Additional GPU Improvements
* Added op hashing (processor->getGPULut3DCacheID)

* Initial DisplayTransform implementation
* ASC CDL Support
* Config Luma coefficients

* Updated Nuke Plugin, now works in OSX
* Fixed misc. build warnings.
* Continued GPU progress (still under development)

* Renamed project, classes, namespaces to OpenColorIO (OCIO)
* Added single-pixel processor path
* Improved python path makefile detection
* Continued GPU progress (still under development)