init submodule
node.js
use UglifyJS

kh.js.js:   253,801 -> 238,191 (93.8%)
kh.js.gz:    77,171 ->  71,103 (92.1%)
Merge pull request #13 from fetus-hina/uglify

UglifyJS 使ってほんの少し圧縮率を高めよう