.travis.yml in nexmos-0.2 vs .travis.yml in nexmos-0.3

@@ -1,7 +1,16 @@
 language: ruby
 rvm:
-  - 1.9.3
   - 2.0.0
+  - 2.1
   - ruby-head
   - jruby-19mode # JRuby in 1.9 mode
-  - rbx-19mode
+  - rbx-2
+gemfile:
+  - gemfiles/activesupport_3.2.gemfile
+  - gemfiles/activesupport_4.0.gemfile
+  - gemfiles/activesupport_4.1.gemfile
+  - gemfiles/activesupport_4.2.gemfile
+matrix:
+  allow_failures:
+    - rvm: ruby-head
+bundler_args: --without local_development