Document developer error for angle between start and end when using EllipsoidRhumbLine
Document developer error for angle between start and end when using EllipsoidRhumbLine

progsung/cesium,josh-bernstein/cesium,jasonbeverage/cesium,CesiumGS/cesium,YonatanKra/cesium,CesiumGS/cesium,progsung/cesium,likangning93/cesium,AnalyticalGraphicsInc/cesium,geoscan/cesium,CesiumGS/cesium,kaktus40/cesium,YonatanKra/cesium,likangning93/cesium,kaktus40/cesium,josh-bernstein/cesium,YonatanKra/cesium,jasonbeverage/cesium,hodbauer/cesium,geoscan/cesium,AnalyticalGraphicsInc/cesium,hodbauer/cesium,CesiumGS/cesium,likangning93/cesium,CesiumGS/cesium,YonatanKra/cesium,likangning93/cesium,hodbauer/cesium,likangning93/cesium