Bump to v4.0.0.

function.js

@@ -1,28 +1,25 @@
 module.exports = {
-  'after': require('./function/after'),
-  'ary': require('./function/ary'),
-  'backflow': require('./function/backflow'),
-  'before': require('./function/before'),
-  'bind': require('./function/bind'),
-  'bindAll': require('./function/bindAll'),
-  'bindKey': require('./function/bindKey'),
-  'compose': require('./function/compose'),
-  'curry': require('./function/curry'),
-  'curryRight': require('./function/curryRight'),
-  'debounce': require('./function/debounce'),
-  'defer': require('./function/defer'),
-  'delay': require('./function/delay'),
-  'flow': require('./function/flow'),
-  'flowRight': require('./function/flowRight'),
-  'memoize': require('./function/memoize'),
-  'modArgs': require('./function/modArgs'),
-  'negate': require('./function/negate'),
-  'once': require('./function/once'),
-  'partial': require('./function/partial'),
-  'partialRight': require('./function/partialRight'),
-  'rearg': require('./function/rearg'),
-  'restParam': require('./function/restParam'),
-  'spread': require('./function/spread'),
-  'throttle': require('./function/throttle'),
-  'wrap': require('./function/wrap')
+  'after': require('./after'),
+  'ary': require('./ary'),
+  'before': require('./before'),
+  'bind': require('./bind'),
+  'bindKey': require('./bindKey'),
+  'curry': require('./curry'),
+  'curryRight': require('./curryRight'),
+  'debounce': require('./debounce'),
+  'defer': require('./defer'),
+  'delay': require('./delay'),
+  'flip': require('./flip'),
+  'memoize': require('./memoize'),
+  'negate': require('./negate'),
+  'once': require('./once'),
+  'overArgs': require('./overArgs'),
+  'partial': require('./partial'),
+  'partialRight': require('./partialRight'),
+  'rearg': require('./rearg'),
+  'rest': require('./rest'),
+  'spread': require('./spread'),
+  'throttle': require('./throttle'),
+  'unary': require('./unary'),
+  'wrap': require('./wrap')
 };