Gemfile in timespan-0.1.3 vs Gemfile in timespan-0.1.4

@@ -1,7 +1,8 @@
 source :rubygems
 
 gem 'chronic'
+gem 'spanner'
 gem 'ruby-duration'
 
 group :test, :development do
   gem "rspec", 		">= 2.8.0"
 end