Update podspec YAML

Motif.podspec

@@ -7,7 +7,7 @@ Pod::Spec.new do |s|
   }
   s.osx.deployment_target = '10.8'
   s.ios.deployment_target  = '7.0'
-  s.summary = 'A lightweight and customizable JSON stylesheet framework for iOS'
+  s.summary = 'A lightweight and customizable stylesheet framework for iOS'
   s.homepage = "https://github.com/erichoracek/#{s.name}"
   s.author = { 'Eric Horacek' => 'eric@automatic.com' }
   s.source = {
@@ -20,9 +20,16 @@ Pod::Spec.new do |s|
   s.source_files = [
     "#{s.name}/#{s.name}.h",
     "#{s.name}/Core/*.{h,m}",
-    "#{s.name}/Objective-C Runtime/*.{h,m}"
+    "#{s.name}/Objective-C Runtime/*.{h,m}",
+    "#{s.name}/YAML Serialization/*.{h,m}",
+    'Carthage/Checkouts/libyaml/config.h',
+    'Carthage/Checkouts/libyaml/**/*.{h,c}'
   ]
   s.ios.source_files = [
     "#{s.name}/iOS Support/*.{h,m}"
   ]
+
+  s.xcconfig = {
+    'OTHER_CFLAGS' => '-DHAVE_CONFIG_H -Wno-shorten-64-to-32'
+  }
 end