1. Replaced `NULL` with `nullptr` 2. Sending `MSG_MENUPREPARE` to the cube
Send `MSG_MENUPREPARE` to the Null-Object, not because it does anything, but it's a good and conform style to do it.
Enhanced some documenting comments.
Added SDK Example Command 004 - Spheres on Points
Improved comments
1. Added random-snapping example (needs to be implemented) 2. Updated Available examples with an exended naming scheme and new help strings.