* Allow pass the color of points in 'dot-color' mode of Graph3D explicitly - clear the source code and finalize
* Add an onclick callback in Graph3D, to enable click and display customer user-defined information for single data point
* Extra data type validation for string conversion functions in Setings
* Disable onclick callback immediately after rotate/pan
* Re-format the JavaScript file
* No onclick event set by user - properly treat this case now
* Further reformat - indentation
* Handle the case where there is no closest data point