Update slide mode, now respect all meta settings and update default styles

lib/response.js

@@ -555,7 +555,7 @@ function showPublishSlide(req, res, next) {
                 title: title,
                 description: meta.description,
                 slides: slides,
-                slideOptions: JSON.stringify(meta.slideOptions || {}),
+                meta: JSON.stringify(obj.meta || {}),
                 GA: meta.GA,
                 useCDN: config.usecdn
             };