Add .S files to the Pod

Summary: These need to be included while building with CocoaPods.
Closes https://github.com/facebook/react-native/pull/3753

Reviewed By: svcscm

Differential Revision: D2595296

Pulled By: tadeuzagallo

fb-gh-sync-id: f2e2ba729c92c52808ed1b7d23c31f6fa7b9d891

React.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name                = "React"
-  s.version             = "0.8.0"
+  s.version             = "0.15.0"
   s.summary             = "Build high quality mobile apps using React."
   s.description         = <<-DESC
                             React Native apps are built using the React JS
@@ -26,7 +26,7 @@ Pod::Spec.new do |s|
   s.preserve_paths      = "cli.js", "Libraries/**/*.js", "lint", "linter.js", "node_modules", "package.json", "packager", "PATENTS", "react-native-cli"
 
   s.subspec 'Core' do |ss|
-    ss.source_files     = "React/**/*.{c,h,m}"
+    ss.source_files     = "React/**/*.{c,h,m,S}"
     ss.exclude_files    = "**/__tests__/*", "IntegrationTests/*"
     ss.frameworks       = "JavaScriptCore"
   end
@@ -103,11 +103,11 @@ Pod::Spec.new do |s|
     ss.source_files     = "Libraries/LinkingIOS/*.{h,m}"
     ss.preserve_paths   = "Libraries/LinkingIOS/*.js"
   end
-  
+
   s.subspec 'RCTTest' do |ss|
     ss.source_files     = "Libraries/RCTTest/**/*.{h,m}"
     ss.preserve_paths   = "Libraries/RCTTest/**/*.js"
     ss.frameworks       = "XCTest"
   end
-  
+
 end