rails_4.gemfile in re_track-0.7.1

- old
+ new

@@ -2,9 +2,10 @@
 
 source "https://rubygems.org/"
 
 gem "jquery-rails"
 gem "responders"
+gem "test-unit", "~> 3.0"
 gem "rails", "~> 4.0"
 gem "mongoid", "~> 4"
 
-gemspec :path => "../"
+gemspec path: "../"