.travis.yml in ably-rest-1.1.6 vs .travis.yml in ably-rest-1.1.7

@@ -6,9 +6,12 @@
   - 2.0.0
   - 2.1.10
   - 2.2.0
   - 2.3.6
   - 2.4.1
+  - 2.6.7
+  - 2.7.3
+  - 3.0.0
 before_install:
   - git submodule update --init --recursive
 script: bundle exec rspec
 notifications:
   slack: