Gemfile in traco-3.1.2 vs Gemfile in traco-3.1.3

@@ -1,4 +1,8 @@
-source "http://rubygems.org"
+source "https://rubygems.org"
 
 # Specify your gem's dependencies in the .gemspec.
 gemspec
+
+group :benchmark do
+  gem "benchmark-ips"
+end