.travis.yml in 3scale_client-2.7.0 vs .travis.yml in 3scale_client-2.8.0

@@ -1,18 +1,27 @@
 language: ruby
 cache: bundler
 sudo: false
 rvm:
-- 1.9.3
 - 2.0.0
 - 2.1
 - 2.2
 - 2.3.0
 - jruby
+gemfile:
+  - Gemfile
+  - gemfiles/rack_1.gemfile
 matrix:
-  include:
+  exclude:
+  - rvm: 2.0.0
+    gemfile: Gemfile
+  - rvm: 2.1
+    gemfile: Gemfile
+  - rvm: 2.2
+    gemfile: Gemfile
   - rvm: jruby
-    env: JRUBY_OPTS="--2.0"
+    gemfile: Gemfile
 env:
   global:
     - TEST_3SCALE_APP_IDS=4d4b20b9 TEST_3SCALE_APP_KEYS=ecce202ecc2eb8dc7a499c34a34d5987
     - secure: VSElS0KvnufcZKStV7kj6xHFEiWvQkpxk1IEuhKq5JqywniN/6ScaNUFxbBKrOUrqhzXIRUCteBP2wvYRjlNhLFZSnYskzh7dLkOp/WV+WK6KjrdflTiF6UTxW4pBSsg6YDJ/wWJlmwsPVty1pRvOE3ru6uco+dTWCCLn4BvWqc=
+    - JRUBY_OPTS="--2.0"