Fix up warnings

Author: jnunemaker

test_rails/generators/flipper/update_generator_test.rb

@@ -65,7 +65,7 @@ class UpdateGeneratorTest < Rails::Generators::TestCase
 
     assert_migration "db/migrate/create_flipper_tables.rb" do |migration|
       assert_method :up, migration do |up|
-        assert_match /text :value/, up
+        assert_match(/text :value/, up)
       end
     end
 

test_rails/helper.rb

@@ -4,6 +4,9 @@
 require 'rails'
 require 'rails/test_help'
 
+require 'warning'
+Warning.ignore(/lib\/capybara\//)
+
 begin
   ActiveSupport::TestCase.test_order = :random
 rescue NoMethodError