Breaks when minified about cytoscape.js-cose-bilkent HOT 11 CLOSED

var gulp = require('gulp');
var uglify = require('gulp-uglify');
var browserify = require('gulp-browserify');

gulp.task('build', function () {
    gulp.src(['index.js'])
        .pipe(browserify())
        .pipe(uglify())
        .pipe(gulp.dest('dist'));


    return 1;
});
gulp.task('default', ['build']);

var cycose = require('cytoscape-cose-bilkent')
var cytoscape = require('cytoscape')
cycose(cytoscape)

gulp           
[17:39:27] Using gulpfile ~/test2/gulpfile.js
[17:39:27] Starting 'build'...
[17:39:27] Finished 'build' after 14 ms
[17:39:27] Starting 'default'...
[17:39:27] Finished 'default' after 47 μs

events.js:161
      throw er; // Unhandled 'error' event
      ^
Error: module "./FDLayoutConstants" not found from "/Users/me/test2/node_modules/cytoscape-cose-bilkent/cytoscape-cose-bilkent.js"
    at notFound (/Users/me/test2/node_modules/browserify/index.js:803:15)
    at /Users/me/test2/node_modules/browserify/index.js:754:23
    at /Users/me/test2/node_modules/browser-resolve/index.js:185:24
    at /Users/me/test2/node_modules/browser-resolve/node_modules/resolve/lib/async.js:36:22
    at load (/Users/me/test2/node_modules/browser-resolve/node_modules/resolve/lib/async.js:54:43)
    at /Users/me/test2/node_modules/browser-resolve/node_modules/resolve/lib/async.js:60:22
    at /Users/me/test2/node_modules/browser-resolve/node_modules/resolve/lib/async.js:16:47
    at FSReqWrap.oncomplete (fs.js:114:15)
➜  test git:(master) ✗ cat Gulpfile.js 

(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({"/Users/max/Documents/workspace/cytoscape.js-cose-bilkent/src/Layout/CoSEConstants.js":[function(require,module,exports){
var FDLayoutConstants = require('./FDLayoutConstants');

function CoSEConstants() {
}

//CoSEConstants inherits static props in FDLayoutConstants
for (var prop in FDLayoutConstants) {
  CoSEConstants[prop] = FDLayoutConstants[prop];
}

CoSEConstants.DEFAULT_USE_MULTI_LEVEL_SCALING = false;
CoSEConstants.DEFAULT_RADIAL_SEPARATION = FDLayoutConstants.DEFAULT_EDGE_LENGTH;
CoSEConstants.DEFAULT_COMPONENT_SEPERATION = 60;

module.exports = CoSEConstants;

},{"./FDLayoutConstants":"/Users/max/Documents/workspace/cytoscape.js-cose-bilkent/src/Layout/FDLayoutConstants.js"}],"/Users/max/Documents/workspace/cytoscape.js-cose-bilkent/src/Layout/CoSEEdge.js":[function(require,module,exports){
var FDLayoutEdge = require('./FDLayoutEdge');

rhill-voronoi-core.js:1721 Uncaught ReferenceError: Point is not defined
    at CoSELayout.positionNodesRadially (rhill-voronoi-core.js:1721)
    at CoSELayout.classicLayout (rhill-voronoi-core.js:1721)
    at CoSELayout.layout (rhill-voronoi-core.js:1721)
    at CoSELayout.Layout.runLayout (rhill-voronoi-core.js:1721)
    at run (rhill-voronoi-core.js:1721)
    at Layout._CoSELayout.run (rhill-voronoi-core.js:1721)
    at Core.layout (rhill-voronoi-core.js:1721)
    at Core.load (rhill-voronoi-core.js:1721)
    at rhill-voronoi-core.js:1721
    at loadExtData (rhill-voronoi-core.js:1721)