rack.gemspec in rack-1.5.1 vs rack.gemspec in rack-1.5.2

@@ -1,9 +1,10 @@
 Gem::Specification.new do |s|
   s.name            = "rack"
-  s.version         = "1.5.1"
+  s.version         = "1.5.2"
   s.platform        = Gem::Platform::RUBY
   s.summary         = "a modular Ruby webserver interface"
+  s.license         = "MIT"
 
   s.description = <<-EOF
 Rack provides a minimal, modular and adaptable interface for developing
 web applications in Ruby.  By wrapping HTTP requests and responses in
 the simplest way possible, it unifies and distills the API for web