use 'me' instead of 'user' consistently

apps/users.lua

@@ -131,8 +131,7 @@ app:get("user_delete_confirm", "/:username/delete_confirm", function(self)
     self.err = self.session.flash.error
     self.session.flash = {}
   end
-  self.user = target_user
-
+  self.me = target_user
   self.page_title = "confirm deletion"
 
   return {render = "user.delete_confirm"}
@@ -212,8 +211,7 @@ app:get("user_settings", "/:username/settings", function(self)
       self.flash_msg = flash.error
     end
   end
-  self.user = target_user
-
+  self.me = target_user
   self.page_title = "settings"
 
   return {render = "user.settings"}
@@ -440,4 +438,4 @@ app:post("guest_user", "/guest_user/:user_id", function(self)
   return {redirect_to = self:url_for("user", {username = target_user.username})}
 end)
 
-return app
+return app