.travis.yml in nymphia-0.1.1 vs .travis.yml in nymphia-0.1.2

@@ -1,5 +1,11 @@
 sudo: false
 language: ruby
 rvm:
-  - 2.3.1
+  - 2.2.7
+  - 2.3.4
+  - 2.4.1
 before_install: gem install bundler -v 1.13.6
+notifications:
+  on_success: change
+  on_failure: change
+  on_start: false