.travis.yml in public_suffix-2.0.3 vs .travis.yml in public_suffix-2.0.4

- old
+ new

@@ -1,23 +1,22 @@
 language: ruby
+
 rvm:
   - 2.0
   - 2.1
   - 2.2
   - 2.3.0
   - jruby-9.0.5.0
   - ruby-head
 
-sudo: false
+before_install:
+  - gem install bundler
+
 cache:
   - bundler
 
 env:
   - COVERALL=1
-
-notifications:
-  recipients:
-    - weppos@weppos.net
 
 matrix:
   allow_failures:
     - rvm: ruby-head
     - rvm: jruby-9.0.5.0