Re-adding rake rename

Rakefile

@@ -91,4 +91,30 @@ end
 desc "Validate the gemspec"
 task :gemspec do
   gemspec.validate
+end
+
+# DELETE AFTER USING
+desc "Rename project"
+task :rename do
+  name = ENV['NAME'] || File.basename(Dir.pwd)
+  camelize = lambda do |str|
+    str.to_s.gsub(/\/(.?)/) { "::#{$1.upcase}" }.gsub(/(?:^|_)(.)/) { $1.upcase }
+  end
+  dir = Dir['**/gem_template*']
+  begin
+    from = dir.pop
+    if from
+      to = from.split('/')
+      to[-1].gsub!('gem_template', name)
+      FileUtils.mv(from, to.join('/'))
+    end
+  end while dir.length > 0
+  Dir["**/*"].each do |path|
+    if File.file?(path)
+      `sed -i '' 's/gem_template/#{name}/g' #{path}`
+      `sed -i '' 's/GemTemplate/#{camelize.call(name)}/g' #{path}`
+      no_space = File.read(path).gsub(/\s+\z/, '')
+      File.open(path, 'w') { |f| f.write(no_space) }
+    end
+  end
 end