Replace couchbase counters with drb version

bin/drb_counter.rb

@@ -0,0 +1,13 @@
+#!/usr/bin/env ruby
+# Make drb server
+require 'rubygems'
+require File.expand_path('../lib/in_memory_q_counter', File.dirname(__FILE__))
+require 'drb'
+require 'daemons'
+drb_port = 9022
+puts "Counter server running at port #{drb_port}"
+Daemons.run_proc('DRBcounter', dir_mode: :normal, dir: File.expand_path("#{File.dirname(__FILE__)}/../tmp/pids")) do
+  DRb.start_service "druby://:#{drb_port}", InMemoryQCounter.new
+  # trap("INT") { DRb.stop_service }
+  DRb.thread.join
+end