.travis.yml in twilio-ruby-4.13.0 vs .travis.yml in twilio-ruby-5.0.0.alpha1

@@ -2,30 +2,12 @@
 language: ruby
 cache: bundler
 bundler_args: --without development
 rvm:
   - ruby-head
-  - ruby
+  - 2.4.0
+  - 2.3.0
   - 2.2.0
   - 2.1.0
   - 2.0.0
-  - 1.9.3
-  - jruby-head
-  - jruby
-  - jruby-19mode
-  - rbx-head
-  - rbx-2
 matrix:
   fast_finish: true
-  allow_failures:
-    - rvm: ruby-head
-    - rvm: ruby
-    - rvm: jruby-head
-    - rvm: jruby
-    - rvm: rbx-head
-notifications:
-  slack:
-    on_success: change
-    on_failure: change
-    rooms:
-      - secure: SVfWQUsuPNfFXU0gFl5OKDQU76Xw5FyZiGz3WzjNCLzLiUXvlu77b8v83ZATCBEgewhu/cXgy4BKTs2hmZ+R3jr/tEBR8wd9V+0cdffgN8L3Ald5MXtISofW5v33CXHYp5P9xIdvOJHVLl4ob01o53rfnfZF6Xi//2+VxR9lI9w=
-      - secure: MqUkEiU0WjSMeyhTkicCbftSQW0dK1Bp8qkoSidWqgM5hGFUAMwjxLZT5Erpua1o5V5cpOfyOqNNcYfgxyOamPLpbnQkaCu7VEABbkuPhVTtM+yuN/odwhGFd/Ph47Z63xxyVLdI4QxVAg+1TzlMijxFC7HAQtyuKYwrPrOSgTI=