preload task now depends on setup task

Author: defunkt

lib/resque/tasks.rb

@@ -41,7 +41,7 @@
   end
 
   # Preload app files if this is Rails
-  task :preload do
+  task :preload => :setup do
     if defined? Rails
       Dir["#{Rails.root}/app/**/*.rb"].each do |file|
         require file