bookingit.gemspec in bookingit-0.4.1 vs bookingit.gemspec in bookingit-0.5.0

@@ -19,9 +19,10 @@
   s.add_development_dependency('rake')
   s.add_development_dependency('rdoc')
   s.add_development_dependency('aruba')
   s.add_development_dependency('clean_test')
   s.add_development_dependency('mocha')
+  s.add_development_dependency('test-unit')
   s.add_runtime_dependency('gli')
   s.add_runtime_dependency('redcarpet','3.1.1') # 3.1.2 made a breaking change. Yup
   s.add_runtime_dependency('mustache')
 end