Prepare the 2.0.3 patch release (#1560)

Signed-off-by: Patrick Hodoul <Patrick.Hodoul@autodesk.com>

Author: hodoulp

CMakeLists.txt

@@ -34,7 +34,7 @@ project(OpenColorIO
     LANGUAGES CXX C)
 
 # "dev", "beta1", rc1", etc or "" for an official release.
-set(OpenColorIO_VERSION_RELEASE_TYPE "dev")
+set(OpenColorIO_VERSION_RELEASE_TYPE "")
 
 enable_testing()