Index: node_modules/d3-ease/src/back.js
===================================================================
--- node_modules/d3-ease/src/back.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-ease/src/back.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,37 @@
+var overshoot = 1.70158;
+
+export var backIn = (function custom(s) {
+  s = +s;
+
+  function backIn(t) {
+    return (t = +t) * t * (s * (t - 1) + t);
+  }
+
+  backIn.overshoot = custom;
+
+  return backIn;
+})(overshoot);
+
+export var backOut = (function custom(s) {
+  s = +s;
+
+  function backOut(t) {
+    return --t * t * ((t + 1) * s + t) + 1;
+  }
+
+  backOut.overshoot = custom;
+
+  return backOut;
+})(overshoot);
+
+export var backInOut = (function custom(s) {
+  s = +s;
+
+  function backInOut(t) {
+    return ((t *= 2) < 1 ? t * t * ((s + 1) * t - s) : (t -= 2) * t * ((s + 1) * t + s) + 2) / 2;
+  }
+
+  backInOut.overshoot = custom;
+
+  return backInOut;
+})(overshoot);
Index: node_modules/d3-ease/src/bounce.js
===================================================================
--- node_modules/d3-ease/src/bounce.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-ease/src/bounce.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,22 @@
+var b1 = 4 / 11,
+    b2 = 6 / 11,
+    b3 = 8 / 11,
+    b4 = 3 / 4,
+    b5 = 9 / 11,
+    b6 = 10 / 11,
+    b7 = 15 / 16,
+    b8 = 21 / 22,
+    b9 = 63 / 64,
+    b0 = 1 / b1 / b1;
+
+export function bounceIn(t) {
+  return 1 - bounceOut(1 - t);
+}
+
+export function bounceOut(t) {
+  return (t = +t) < b1 ? b0 * t * t : t < b3 ? b0 * (t -= b2) * t + b4 : t < b6 ? b0 * (t -= b5) * t + b7 : b0 * (t -= b8) * t + b9;
+}
+
+export function bounceInOut(t) {
+  return ((t *= 2) <= 1 ? 1 - bounceOut(1 - t) : bounceOut(t - 1) + 1) / 2;
+}
Index: node_modules/d3-ease/src/circle.js
===================================================================
--- node_modules/d3-ease/src/circle.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-ease/src/circle.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,11 @@
+export function circleIn(t) {
+  return 1 - Math.sqrt(1 - t * t);
+}
+
+export function circleOut(t) {
+  return Math.sqrt(1 - --t * t);
+}
+
+export function circleInOut(t) {
+  return ((t *= 2) <= 1 ? 1 - Math.sqrt(1 - t * t) : Math.sqrt(1 - (t -= 2) * t) + 1) / 2;
+}
Index: node_modules/d3-ease/src/cubic.js
===================================================================
--- node_modules/d3-ease/src/cubic.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-ease/src/cubic.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,11 @@
+export function cubicIn(t) {
+  return t * t * t;
+}
+
+export function cubicOut(t) {
+  return --t * t * t + 1;
+}
+
+export function cubicInOut(t) {
+  return ((t *= 2) <= 1 ? t * t * t : (t -= 2) * t * t + 2) / 2;
+}
Index: node_modules/d3-ease/src/elastic.js
===================================================================
--- node_modules/d3-ease/src/elastic.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-ease/src/elastic.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,46 @@
+import {tpmt} from "./math.js";
+
+var tau = 2 * Math.PI,
+    amplitude = 1,
+    period = 0.3;
+
+export var elasticIn = (function custom(a, p) {
+  var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau);
+
+  function elasticIn(t) {
+    return a * tpmt(-(--t)) * Math.sin((s - t) / p);
+  }
+
+  elasticIn.amplitude = function(a) { return custom(a, p * tau); };
+  elasticIn.period = function(p) { return custom(a, p); };
+
+  return elasticIn;
+})(amplitude, period);
+
+export var elasticOut = (function custom(a, p) {
+  var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau);
+
+  function elasticOut(t) {
+    return 1 - a * tpmt(t = +t) * Math.sin((t + s) / p);
+  }
+
+  elasticOut.amplitude = function(a) { return custom(a, p * tau); };
+  elasticOut.period = function(p) { return custom(a, p); };
+
+  return elasticOut;
+})(amplitude, period);
+
+export var elasticInOut = (function custom(a, p) {
+  var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau);
+
+  function elasticInOut(t) {
+    return ((t = t * 2 - 1) < 0
+        ? a * tpmt(-t) * Math.sin((s - t) / p)
+        : 2 - a * tpmt(t) * Math.sin((s + t) / p)) / 2;
+  }
+
+  elasticInOut.amplitude = function(a) { return custom(a, p * tau); };
+  elasticInOut.period = function(p) { return custom(a, p); };
+
+  return elasticInOut;
+})(amplitude, period);
Index: node_modules/d3-ease/src/exp.js
===================================================================
--- node_modules/d3-ease/src/exp.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-ease/src/exp.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,13 @@
+import {tpmt} from "./math.js";
+
+export function expIn(t) {
+  return tpmt(1 - +t);
+}
+
+export function expOut(t) {
+  return 1 - tpmt(t);
+}
+
+export function expInOut(t) {
+  return ((t *= 2) <= 1 ? tpmt(1 - t) : 2 - tpmt(t - 1)) / 2;
+}
Index: node_modules/d3-ease/src/index.js
===================================================================
--- node_modules/d3-ease/src/index.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-ease/src/index.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,66 @@
+export {
+  linear as easeLinear
+} from "./linear.js";
+
+export {
+  quadInOut as easeQuad,
+  quadIn as easeQuadIn,
+  quadOut as easeQuadOut,
+  quadInOut as easeQuadInOut
+} from "./quad.js";
+
+export {
+  cubicInOut as easeCubic,
+  cubicIn as easeCubicIn,
+  cubicOut as easeCubicOut,
+  cubicInOut as easeCubicInOut
+} from "./cubic.js";
+
+export {
+  polyInOut as easePoly,
+  polyIn as easePolyIn,
+  polyOut as easePolyOut,
+  polyInOut as easePolyInOut
+} from "./poly.js";
+
+export {
+  sinInOut as easeSin,
+  sinIn as easeSinIn,
+  sinOut as easeSinOut,
+  sinInOut as easeSinInOut
+} from "./sin.js";
+
+export {
+  expInOut as easeExp,
+  expIn as easeExpIn,
+  expOut as easeExpOut,
+  expInOut as easeExpInOut
+} from "./exp.js";
+
+export {
+  circleInOut as easeCircle,
+  circleIn as easeCircleIn,
+  circleOut as easeCircleOut,
+  circleInOut as easeCircleInOut
+} from "./circle.js";
+
+export {
+  bounceOut as easeBounce,
+  bounceIn as easeBounceIn,
+  bounceOut as easeBounceOut,
+  bounceInOut as easeBounceInOut
+} from "./bounce.js";
+
+export {
+  backInOut as easeBack,
+  backIn as easeBackIn,
+  backOut as easeBackOut,
+  backInOut as easeBackInOut
+} from "./back.js";
+
+export {
+  elasticOut as easeElastic,
+  elasticIn as easeElasticIn,
+  elasticOut as easeElasticOut,
+  elasticInOut as easeElasticInOut
+} from "./elastic.js";
Index: node_modules/d3-ease/src/linear.js
===================================================================
--- node_modules/d3-ease/src/linear.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-ease/src/linear.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,1 @@
+export const linear = t => +t;
Index: node_modules/d3-ease/src/math.js
===================================================================
--- node_modules/d3-ease/src/math.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-ease/src/math.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,4 @@
+// tpmt is two power minus ten times t scaled to [0,1]
+export function tpmt(x) {
+  return (Math.pow(2, -10 * x) - 0.0009765625) * 1.0009775171065494;
+}
Index: node_modules/d3-ease/src/poly.js
===================================================================
--- node_modules/d3-ease/src/poly.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-ease/src/poly.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,37 @@
+var exponent = 3;
+
+export var polyIn = (function custom(e) {
+  e = +e;
+
+  function polyIn(t) {
+    return Math.pow(t, e);
+  }
+
+  polyIn.exponent = custom;
+
+  return polyIn;
+})(exponent);
+
+export var polyOut = (function custom(e) {
+  e = +e;
+
+  function polyOut(t) {
+    return 1 - Math.pow(1 - t, e);
+  }
+
+  polyOut.exponent = custom;
+
+  return polyOut;
+})(exponent);
+
+export var polyInOut = (function custom(e) {
+  e = +e;
+
+  function polyInOut(t) {
+    return ((t *= 2) <= 1 ? Math.pow(t, e) : 2 - Math.pow(2 - t, e)) / 2;
+  }
+
+  polyInOut.exponent = custom;
+
+  return polyInOut;
+})(exponent);
Index: node_modules/d3-ease/src/quad.js
===================================================================
--- node_modules/d3-ease/src/quad.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-ease/src/quad.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,11 @@
+export function quadIn(t) {
+  return t * t;
+}
+
+export function quadOut(t) {
+  return t * (2 - t);
+}
+
+export function quadInOut(t) {
+  return ((t *= 2) <= 1 ? t * t : --t * (2 - t) + 1) / 2;
+}
Index: node_modules/d3-ease/src/sin.js
===================================================================
--- node_modules/d3-ease/src/sin.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-ease/src/sin.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,14 @@
+var pi = Math.PI,
+    halfPi = pi / 2;
+
+export function sinIn(t) {
+  return (+t === 1) ? 1 : 1 - Math.cos(t * halfPi);
+}
+
+export function sinOut(t) {
+  return Math.sin(t * halfPi);
+}
+
+export function sinInOut(t) {
+  return (1 - Math.cos(pi * t)) / 2;
+}