Require rspec expectations into spinach

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

features/support/env.rb

@@ -9,6 +9,7 @@ ENV['RAILS_ENV'] = 'test'
 require './config/environment'
 require 'rspec'
+require 'rspec/expectations'
 require 'database_cleaner'
 require 'spinach/capybara'
 require 'sidekiq/testing/inline'