chat.rb in sinatra-2.1.0

- old
+ new

@@ -1,8 +1,9 @@
 #!/usr/bin/env ruby -I ../lib -I lib
 # coding: utf-8
+require_relative 'rainbows'
 require 'sinatra'
-set :server, 'thin'
+set :server, :rainbows
 connections = []
 
 get '/' do
   halt erb(:login) unless params[:user]
   erb :chat, :locals => { :user => params[:user].gsub(/\W/, '') }