Improved detection of OIS, with default paths built by the Ogre dependencies package.
Improved detection of OIS, with default paths built by the Ogre dependencies package.

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