Bunch small things: Notifs for react, subsplash...

routes/post.js

@@ -142,6 +142,7 @@ DB.getDB.then((DB) => {
             createdAt: new Date()
         };
         r = await DB.newReaction(postid, profileid, reaction);
+        Notifications.youGotANewReaction(postid, profileid, 'like');
         return res.json({
             status: "ok"
         });