added options.rb where (for now only) RACK_ENV is defined

app.rb

@@ -2,7 +2,7 @@
 
 require 'json'
 
-Bundler.require( :default, :development ) # require tout les gems définis dans Gemfile
+Bundler.require( :default, ENV[ 'RACK_ENV' ].to_sym ) # require tout les gems définis dans Gemfile
 
 require_relative './lib/ledger'
 

config.ru

@@ -1,11 +1,13 @@
 # encoding: utf-8
 
+require_relative 'config/options'
 require_relative './app'
 
 configure :development do
   Sinatra::Application.reset!
   use Rack::Reloader
 end
+
 use Rack::Rewrite do
   rewrite %r{^/(.*(css|js|ttf|woff|html|png|jpg|jpeg|gif)$)}, '/app/$1'
 end

config/options.rb

@@ -0,0 +1,3 @@
+# encoding: utf-8
+
+ENV[ 'RACK_ENV' ] = 'development'