use grunt-contrib-uglify

[froyo-naux]

之前那个要安装java比较麻烦，换了 grunt-contrib-uglify

测试结果:

npx: 92 安装成功，用时 11.929 秒
Running "default" task
config file update success

Running "concat:js" (concat) task
File "dist/utf8-php/umeditor.js" created.

Running "concat:css" (concat) task
File "dist/utf8-php/themes/default/css/umeditor.css" created.

Running "cssmin:files" (cssmin) task
File dist/utf8-php/themes/default/css/umeditor.min.css created.

Running "uglify:dest" (uglify) task
File dist/utf8-php/umeditor.min.js created: 371.35 kB → 144.07 kB
>> 1 file created.

Running "copy:base" (copy) task
Created 21 directories, copied 88 files

Running "copy:php" (copy) task
Created 1 directories, copied 3 files

Running "copy:demo" (copy) task
Copied 1 files

Running "replace:demo" (replace) task

Running "transcoding:src" (transcoding) task
28 files transcoded.

Done, without errors.