Bump version to 4.8.0

Author: joshuaclayton

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    factory_girl_rails (4.7.0)
+    factory_girl_rails (4.8.0)
       factory_girl (~> 4.8.0)
       railties (>= 3.0.0)
 

factory_girl_rails.gemspec

@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name        = %q{factory_girl_rails}
-  s.version     = '4.7.0'
+  s.version     = '4.8.0'
   s.authors     = ["Joe Ferris"]
   s.email       = %q{jferris@thoughtbot.com}
   s.homepage    = "https://github.com/thoughtbot/factory_girl_rails"