Changelog for Version 1.5.1

* Fixed colour channel swap when creating proxy images from OpenEXR images
* Fixed the dropping of tiles when loading from an OpenEXR image on multi-core machines
* Fixed a crash when using front projection, due to infiniMap trying to aquire a global while rendering... one that isn't even needed at that point in time... d'oh
* Multithreaded rendering is back at full speed again
* The procedural texture now updates properly if the front projection camera changes
* The nodes wouldn't render front projections at all... now they do.
* Fixed bump mapping LoD
* Slight speed-up handling UV maps
* Added support for palettized images
* Add Folder now works in the Converter on OSX
* Fixed a crash when rendering with HDInstance