Log Message:
Changes 0.22.1:
* native OpenEXR Half sample type substitutes the older RnH 16-bit float
* load/save multilayerd OpenEXR files like from Blender
* load/save 16-bit Half Tiff's
* precise drawing with tablet - thanks to Tino Schwarze for hardware
* speedup in gamma-expose and Brightness/Contrast Adjustments
* dynamic colour visualisation in ICC Examin plug-in
* UTF-8 support through Gtk2
* UFRaw plug-in ready
* CMS defaults to Oyranos
* Tango icons for toolbox only
* Retinex plug-in
* Bugfixes