PEP 0.4.0 发布，主要更新包括，更好地支持 module bundlers。详细内容如下： Fixed module inclusion for node, browserify, webpack, etc. (#223, 6a9c6f0, 19122a3) Added WIP build to CDN. (#230) Moved pointerevents.js to src/ directory. (#239, fbf316b) Check for standard properties before prefixed properties (#225, 1c93f07) Fixed issue when mutation observers aren't supported. (#204, d928d44) Fixed Node.contains() bug in Firefox. (#193, 589bd3f) Fixed tests for PointerMap API (#196, efce89d) Added watch task to rebuild on source changes. (#236, 19e739e) Improved buttons property for pointerdown and pointerup events. (#166, 0e3fb28) Replaced touch-action list with spec reference. (#210, 983f24c) Added example for using PEP with jQuery. (#163, 35ac341) Replaced PointerMap with potentially-sparse-array-based Map polyfill. (8c6d453) 参见 changelog. 下载地址： npm, bower (pepjs), the jQuery CDN, GitHub release PEP(Pointer Events Polyfill) 是 Web 平台的统一事件系统。 鼠标事件和触摸事件在浏览器中是完全不同的，很难写出跨平台的应用。此应用就是为了解决这个问题，统一事件的处理，同时监听桌面的鼠标事件和移动端的触摸事件。 完全支持：Chrome 18+, Safari 6+, IE 10, Firefox 14+；部分支持 Opera 12-14。 PEP 0.4.0 发布，Web 统一事件系统下载地址
