Hi everybody!
I want to suggest to upgrade vendor libs (you have old libs versions.). I tested replacement libs to new versions. Here is the result:
public/vendor/ace
public/vendor/bootbox/ [update: no]
public/vendor/bootstrap/ [update: ok (interface lags? https://github.com/twbs/bootstrap/issues/18777)]
public/vendor/buzz/ [update: ok]
public/vendor/colorpicker/ [update: no]
public/vendor/fontawesome/ [update: ok]
public/vendor/mdl/ [update: ok]
public/vendor/requirejs/ [update: ok]
public/vendor/semver/ [update: no]
public/vendor/slideout/ [update: js error]
public/vendor/snackbar/ [update: js error]
public/vendor/tinycon/ [update: js error]
public/vendor/visibility/ [update: ok]
public/vendor/xregexp/ [update: js error]
public/vendor/jquery/bootstrap-tagsinput/ [update: no]
public/vendor/jquery/css/
public/vendor/jquery/deserialize/ [update: ok]
public/vendor/jquery/draggable-background/ [update: no]
public/vendor/jquery/event/ [update: no]
public/vendor/jquery/js/ (jquery - update: ok | jquery.form.min - update: ok)
public/vendor/jquery/serializeObject/ [update: no]
public/vendor/jquery/sortable/ [update: ok]
public/vendor/jquery/textcomplete/ [update: ok]
public/vendor/jquery/timeago/ [update: ok]
public/vendor/autosize.js [update: no]
public/vendor/nprogress.min.js [update: js error]