.travis.yml in active_merchant-epsilon-0.5.4 vs .travis.yml in active_merchant-epsilon-0.5.5

@@ -1,6 +1,13 @@
 language: ruby
-
 rvm:
-  - 2.1.6
-  - 2.2.2
+- 2.1.7
+- 2.2.3
+- 2.3.0
+
 script: bundle exec rake test:remote
+script: bundle exec rake test:unit
+
+notifications:
+  slack:
+    rooms:
+      secure: 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