Load user memberships by default

since nearly every view will check permissions, eager loading memberships might
be a good idea.

app/controllers/application_controller.rb

@@ -84,7 +84,7 @@ class ApplicationController < ActionController::Base
   def find_current_user
     if session[:user_id]
       # existing session
-      (User.active.find(session[:user_id]) rescue nil)
+      (User.active.find(session[:user_id], :include => [:memberships]) rescue nil)
     elsif cookies[Redmine::Configuration['autologin_cookie_name']] && Setting.autologin?
       # auto-login feature starts a new session
       user = User.try_to_autologin(cookies[Redmine::Configuration['autologin_cookie_name']])