Rakefile in pd-1.0.2 vs Rakefile in pd-1.0.3

@@ -3,9 +3,17 @@
 	sh "gem build pd.gemspec"
 	sh "gem push pd-*.gem"
 	sh "rm pd-*.gem"
 end
 
+desc "install to local"
+task :install do
+	sh "gem build pd.gemspec"
+	sh "gem install pd-*.gem"
+	sh "rm pd-*.gem"
+end
+
+
 desc "testing the library"
 task :test do
 	sh "rspec --color spec"
 end