Update factory_girl_rails to 4.7.0

Gemfile

@@ -271,7 +271,7 @@ group :development, :test do
   gem 'fuubar', '~> 2.0.0'
 
   gem 'database_cleaner',   '~> 1.5.0'
-  gem 'factory_girl_rails', '~> 4.6.0'
+  gem 'factory_girl_rails', '~> 4.7.0'
   gem 'rspec-rails',        '~> 3.5.0'
   gem 'rspec-retry',        '~> 0.4.5'
   gem 'spinach-rails',      '~> 0.2.1'

Gemfile.lock

@@ -177,10 +177,10 @@ GEM
     excon (0.52.0)
     execjs (2.6.0)
     expression_parser (0.9.0)
-    factory_girl (4.5.0)
+    factory_girl (4.7.0)
       activesupport (>= 3.0.0)
-    factory_girl_rails (4.6.0)
-      factory_girl (~> 4.5.0)
+    factory_girl_rails (4.7.0)
+      factory_girl (~> 4.7.0)
       railties (>= 3.0.0)
     faraday (0.9.2)
       multipart-post (>= 1.2, < 3)
@@ -819,7 +819,7 @@ DEPENDENCIES
   dropzonejs-rails (~> 0.7.1)
   email_reply_parser (~> 0.5.8)
   email_spec (~> 1.6.0)
-  factory_girl_rails (~> 4.6.0)
+  factory_girl_rails (~> 4.7.0)
   ffaker (~> 2.0.0)
   flay (~> 2.6.1)
   fog-aws (~> 0.9)