add a little test script for autoreconnection with pairing

bin/autoreconnect.rb

@@ -0,0 +1,26 @@
+$LOAD_PATH[0,0] = File.join(File.dirname(__FILE__), '..', 'lib')
+require 'mongo'
+
+db = Mongo::Connection.new({:left => ["localhost", 27017], :right => ["localhost", 27018]}, nil, :auto_reconnect => true).db("ruby_test")
+
+db['test'].clear
+10.times do |i|
+  db['test'].save("x" => i)
+end
+
+while true do
+  begin
+    exit() if not db['test'].count() == 10
+
+    x = 0
+    db['test'].find().each do |doc|
+      x += doc['x']
+    end
+    exit() if not x == 45
+    print "."
+    STDOUT.flush
+    sleep 1
+  rescue
+    sleep 1
+  end
+end