Early Testing Release

This is an early testing build of a tool I've been putting together:
a drag-and-drop track designer for NoLimits 2, aimed at giving you
FVD++-style versatility without FVD++'s learning curve. You build a
ride from a palette of named elements (including real manufacturer
elements - B&M, Arrow, RMC, Intamin/Mack), watch it update live in a
3D/2D preview, get a live estimate of speed and G-forces as you build,
and export straight to a format NL2 can import.

This is early. I want it broken by real NL2 users before I call
anything final. If something looks wrong, feels wrong, or you just
wish it worked differently - please post about it. Details on how to
report things are at the bottom.