Update CHANGES
Update CHANGES

likangning93/cesium,CesiumGS/cesium,progsung/cesium,likangning93/cesium,YonatanKra/cesium,YonatanKra/cesium,likangning93/cesium,jasonbeverage/cesium,likangning93/cesium,CesiumGS/cesium,YonatanKra/cesium,CesiumGS/cesium,likangning93/cesium,YonatanKra/cesium,AnalyticalGraphicsInc/cesium,CesiumGS/cesium,progsung/cesium,AnalyticalGraphicsInc/cesium,jasonbeverage/cesium,CesiumGS/cesium