Re-enable image uploading for push-ghost

It was disabled while debugging and we left it like that by
mistake :P

functions.js

@@ -150,10 +150,8 @@ const pushToGhost = (postSlug) => {
       if (!fs.existsSync(imagePath)) {
         console.warn('Skipping missing image: ' + imageName)
       } else {
-        // TODO: upload pic
-        /*
+        // upload pic to server
         uploadDav(davPath, imagePath)
-        */
 
         newLine = '![' + imageAlt + '](' + uploadedPath + '/' + imageName + ')'
       }