FIX: GLES renderer missing implementation for the getTexture func.
FIX: GLES renderer missing implementation for the getTexture func.

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