Merge remote-tracking branch 'origin/master'

doum

昨天 2f3221b7c90d5663fdb312653a2d188bc4628370

1
Object.keys||(Object.keys=function(e){if(e!==Object(e))throw new TypeError("Object.keys called on a non-object");var t,r=[];for(t in e)Object.prototype.hasOwnProperty.call(e,t)&&r.push(t);return r});