updated podspec for release

Material.podspec

@@ -8,8 +8,9 @@ Pod::Spec.new do |s|
   s.authors = { 'CosmicMind, Inc.' => 'support@cosmicmind.io' }
   s.source = { :git => 'https://github.com/CosmicMind/Material.git', :tag => s.version }
   s.ios.deployment_target = '8.0'
+  s.ios.source_files = 'Sources/iOS/**/*.swift'
   s.osx.deployment_target = '10.9'
-  s.source_files = 'Sources/**/*.swift'
+  s.osx.source_files = 'Sources/OSX/**/*.swift'
   s.requires_arc = true
   s.resource_bundles = {
       'Fonts' => ['Sources/**/*.ttf']