rewrite to handler.js format

components/sections/inflections/handler.js

@@ -0,0 +1,17 @@
+module.exports = {
+  setupCubic: function(api) {
+    var curve = new api.Bezier(135,25,  25, 135,  215,75,  215,240);
+    api.setCurve(curve);
+  },
+
+  draw: function(api, curve) {
+    api.reset();
+    api.drawSkeleton(curve);
+    api.drawCurve(curve);
+
+    api.setColor("red");
+    curve.inflections().forEach(function(t) {
+      api.drawCircle(curve.get(t), 5);
+    });
+  }
+};