Switch version to 0.0.1 and add tag to Podspec

Author: blakewatters

RKXMLReaderSerialization.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "RKXMLReaderSerialization"
-  s.version      = "0.20.0"
+  s.version      = "0.1.0"
   s.summary      = "A RestKit serialization format implementation for XML using XMLReader."
   s.homepage     = "https://github.com/RestKit/RKXMLReaderSerialization"
   s.license      = { :type => 'Apache', :file => 'LICENSE'}
@@ -10,7 +10,7 @@ Pod::Spec.new do |s|
   s.ios.deployment_target = '5.0'
   s.osx.deployment_target = '10.7'
 
-  s.source       = { :git => "https://github.com/RestKit/RKXMLReaderSerialization.git" }
+  s.source       = { :git => "https://github.com/RestKit/RKXMLReaderSerialization.git", :tag => 'v0.1.0' }
   s.source_files = '*.{h,m}'
 
   s.dependency 'RestKit', '>= 0.20.0dev'