Update js-beautify dependency
Update js-beautify dependency

js-beautify@1.3.4 is deprecated; There are "major indenting and html bug fixes in 1.4.0."
Zhang/grunt-html-build,Zhang/grunt-html-build,schoes/grunt-html-build,elephanter/grunt-html-build,tegscramp/grunt-html-build,hacksalot/grunt-html-build,hacksalot/grunt-html-build,schoes/grunt-html-build,tegscramp/grunt-html-build,elephanter/grunt-html-build