environment.rb

def require_all(dir, &block)
  Dir[File.join(dir, '**', '*.rb')].each do |path|
    begin
      require path
    rescue => e
      yield path
    end
  end
end

Rails::Initializer.run do |config|

  config.time_zone = 'UTC'

 ...

  # require monkey patches
  require_all(File.join(RAILS_ROOT, 'lib', 'patches')) do |path|
    puts "** [Error] Could not load patch #{path}"
  end

end