use 'me' instead of 'user' consistently

apps/threads.lua

@@ -23,6 +23,7 @@ app:get("thread_create", "/create", function(self)
   end
   self.all_topics = all_topics
   self.page_title = "creating thread"
+  self.me = user
   return {render = "threads.create"}
 end)
 
@@ -90,7 +91,7 @@ app:get("thread", "/:slug", function(self)
     LIMIT ? OFFSET ?
   ]], thread.id, POSTS_PER_PAGE, (self.page - 1) * POSTS_PER_PAGE)
   self.topic = Topics:find(thread.topic_id)
-  self.user = util.get_logged_in_user_or_transient(self)
+  self.me = util.get_logged_in_user_or_transient(self)
   self.posts = posts
   
   self.page_title = thread.title