use ConnectionManagement middleware to close database connect automatically

tsechingho · tsechingho · commit 2732957b7eb2 · 2014-06-11T11:04:25.000+08:00
diff --git a/config.ru b/config.ru
@@ -7,5 +7,6 @@ require "casserver"
 use Rack::ShowExceptions
 use Rack::Runtime
 use Rack::CommonLogger
+use ActiveRecord::ConnectionAdapters::ConnectionManagement
 
 run CASServer::Server.new
