.travis.yml in tracker_api-0.2.9 vs .travis.yml in tracker_api-0.2.10

@@ -1,9 +1,10 @@
 language: ruby
 rvm:
   - "1.9.3"
   - "2.0.0"
   - "2.1.0"
+  - "2.2.2"
   # Faraday::ConnectionFailed: Could not generate DH keypair (Java::JavaLang::RuntimeException)
   # http://bugs.java.com/bugdatabase/view_bug.do?bug_id=7044060
   #  - jruby-19mode # JRuby in 1.9 mode
   #  - rbx
   #  - "1.8.7"