Update FactoryGirl requirement to 4.9.0

Author: joshuaclayton

Gemfile.lock

@@ -2,7 +2,7 @@ PATH
   remote: .
   specs:
     factory_girl_rails (4.8.0)
-      factory_girl (~> 4.8.0)
+      factory_girl (~> 4.9.0)
       railties (>= 3.0.0)
 
 GEM
@@ -63,7 +63,7 @@ GEM
     diff-lcs (1.2.5)
     erubis (2.7.0)
     execjs (2.0.2)
-    factory_girl (4.8.0)
+    factory_girl (4.9.0)
       activesupport (>= 3.0.0)
     ffi (1.9.3)
     ffi (1.9.3-java)

factory_girl_rails.gemspec

@@ -16,5 +16,5 @@ Gem::Specification.new do |s|
   s.license       = "MIT"
 
   s.add_runtime_dependency('railties', '>= 3.0.0')
-  s.add_runtime_dependency('factory_girl', '~> 4.8.0')
+  s.add_runtime_dependency('factory_girl', '~> 4.9.0')
 end