Bump to v4.0.0.

function.default.js

@@ -0,0 +1,31 @@
+import after from './after';
+import ary from './ary';
+import before from './before';
+import bind from './bind';
+import bindKey from './bindKey';
+import curry from './curry';
+import curryRight from './curryRight';
+import debounce from './debounce';
+import defer from './defer';
+import delay from './delay';
+import flip from './flip';
+import memoize from './memoize';
+import negate from './negate';
+import once from './once';
+import overArgs from './overArgs';
+import partial from './partial';
+import partialRight from './partialRight';
+import rearg from './rearg';
+import rest from './rest';
+import spread from './spread';
+import throttle from './throttle';
+import unary from './unary';
+import wrap from './wrap';
+
+export default {
+  after, ary, before, bind, bindKey,
+  curry, curryRight, debounce, defer, delay,
+  flip, memoize, negate, once, overArgs,
+  partial, partialRight, rearg, rest, spread,
+  throttle, unary, wrap
+};