Add Rakefile for testing, building

Author: mtodd

Rakefile

@@ -0,0 +1,9 @@
+require "bundler/gem_tasks"
+require "rake/testtask"
+
+task :default => :test
+Rake::TestTask.new do |t|
+  t.libs << "lib"
+  t.test_files = FileList['test/**/*_test.rb']
+  t.verbose = true
+end