Fix 1695755: Ignore adjacent points if they are in exactly the same place.

Fix 1695755: Ignore adjacent points if they are in exactly the same place.

Fix 1692825: Render all cusps, even the first one.  Only display a cusp if tangents are split.  This gives the user per-vertex control over the rendering of cusps.

Fix bug: The beginning isn't rounded if the first point has a zero tangent

Fix bug: Strange artifacts sometimes appear at the verticies of outlines.

Fix bug: Rounded ends were missing a point.  This doesn't show up with the default 50 points per rounded end, but reducing it to 5 or so shows up the problem.

git-svn-id: http://svn.voria.com/code@446 1f10aa63-cdf2-0310-b900-c93c546f37ac