added basic passenger support, no long polling but functions

clean up initializers so they are ordered properly

config/initializers/01-redis.rb

@@ -0,0 +1,20 @@
+require "#{Rails.root}/lib/discourse_redis"
+
+$redis = DiscourseRedis.new
+
+if Rails.env.development? && !ENV['DO_NOT_FLUSH_REDIS']
+  puts "Flushing redis (development mode)"
+  $redis.flushall
+end
+
+if defined?(PhusionPassenger)
+    PhusionPassenger.on_event(:starting_worker_process) do |forked|
+        if forked
+            # We're in smart spawning mode.
+            $redis = DiscourseRedis.new
+            Discourse::Application.config.cache_store.reconnect# = DiscourseRedis.new_redis_store
+        else
+            # We're in conservative spawning mode. We don't need to do anything.
+        end
+    end
+end