Merge pull request #40 from slothbear/patch-1

Better name for repository (?)

Rakefile

@@ -3,8 +3,8 @@ require 'bundler/gem_tasks'
 require File.expand_path('../lib/chosen-rails/source_file', __FILE__)
 
 desc "Update with Harvest's Chosen Library"
-task 'update-chosen', 'remote', 'branch' do |task, args|
-  remote = args['remote'] || 'https://github.com/harvesthq/chosen'
+task 'update-chosen', 'repository_url', 'branch' do |task, args|
+  remote = args['repository_url'] || 'https://github.com/harvesthq/chosen'
   branch = args['branch'] || 'master'
   files = SourceFile.new
   files.fetch remote, branch