Merge pull request #28 from juijs/dependabot/npm_and_yarn/acorn-6.4.1

Bump acorn from 6.1.1 to 6.4.1

가로스크롤시 throttle 관련 버그 수정

xtable에 setTpl 메소드 추가

Fixed a bug that prevented rendering when 'scrollHeight' method was c…

…alled.

레티나 환경에서 스크롤시 re-paint가 발생하지 않는 버그 수정

 - transform: translateZ(0)을 추가해서 GPU 가속을 받게 함

webpack-dev-server 버전 변경

'jui-core', 'jui-ui' library version changed.

2.2.4-es6 version released

2.2.2-es6 version released.

1. Fixed a bug where the virtual scroll response was slow.

2. Upgrading grunt version.