Define railties as development dependency

Rafael Mendonça França · Rafael Mendonça França · commit 44a872d5165c · 2014-04-09T15:06:23.000-03:00
diff --git a/sprockets-rails.gemspec b/sprockets-rails.gemspec
@@ -15,6 +15,7 @@ Gem::Specification.new do |s|
   s.add_dependency "actionpack", ">= 3.0"
   s.add_dependency "activesupport", ">= 3.0"
   s.add_development_dependency "rake"
+  s.add_development_dependency "railties", ">= 3.0"
 
   s.author = "Joshua Peek"
   s.email  = "josh@joshpeek.com"
