FIX: Use const_cast to work around issue of non-const param in Ogre API.
FIX: Use const_cast to work around issue of non-const param in Ogre API.

ruleless/CEGUI,ruleless/CEGUI,OpenTechEngine/CEGUI,OpenTechEngine/CEGUI,OpenTechEngine/CEGUI,ruleless/CEGUI,OpenTechEngine/CEGUI,ruleless/CEGUI