.travis.yml in bugsnag-api-1.0.3 vs .travis.yml in bugsnag-api-2.0.0

@@ -1,9 +1,20 @@
 language: ruby
 rvm:
+- 2.4.1
+- 2.2.2
 - 2.1.0
 - 2.0.0
 - 1.9.3
-- jruby-18mode
 - jruby-19mode
-- 1.8.7
-- rbx-2
+
+before_install:
+- gem install bundler -v 1.12
+- gem update --system
+- bundle --version
+- gem --version
+
+install:
+- bundle _1.12.0_ install --with "$GEMSETS"
+
+script:
+- bundle _1.12.0_ exec rake