wrong parameters for a normal in Example2d(), and the horiz/vert
constraints were not documented correctly.
[git-p4: depot-paths = "//depot/solvespace/": change = 1963]
little test app that links against it. I still need to polish a few
things, but this is more or less as it should be.
[git-p4: depot-paths = "//depot/solvespace/": change = 1944]
Jonathan Westhues