locking gemspec to Rails 4 so as to allow our next version for Rails 5

Author: ch1ago

oauth.gemspec

@@ -22,9 +22,9 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency("rake")
   spec.add_development_dependency("minitest")
   spec.add_development_dependency("byebug")
-  spec.add_development_dependency("actionpack", ">= 4.0.2")
+  spec.add_development_dependency("actionpack", "~> 4.0")
   spec.add_development_dependency("iconv")
-  spec.add_development_dependency("rack")
+  spec.add_development_dependency("rack", "~> 1.0")
   spec.add_development_dependency("rack-test")
   spec.add_development_dependency("mocha", ">= 0.9.12")
   spec.add_development_dependency("typhoeus", ">= 0.1.13")