Update travis build matrix

Author: cbeer

.travis.yml

@@ -5,28 +5,26 @@ notifications:
   email: false
 
 rvm:
-  - 2.2.1
+  - 2.2.2
 
 matrix:
   include:
-    - rvm: 2.2.1
+    - rvm: 2.2.2
       env: "RAILS_VERSION=4.0.12"
-    - rvm: 2.2.1
+    - rvm: 2.2.2
       env: "RAILS_VERSION=4.1.9"
-    - rvm: 2.1.5
-      env: "RAILS_VERSION=4.2.0"
-    - rvm: 2.1.5
+    - rvm: 2.1.6
       env: "RAILS_VERSION=4.2.1"
     - rvm: jruby
-      env: "RAILS_VERSION=4.2.0 JRUBY_OPTS=\"-J-Xms512m -J-Xmx1024m\""
+      env: "RAILS_VERSION=4.2.1 JRUBY_OPTS=\"-J-Xms512m -J-Xmx1024m\""
     - rvm: 1.9.3
-      env: "RAILS_VERSION=4.2.0"
+      env: "RAILS_VERSION=4.2.1"
 
 before_install:
   - gem install bundler
 
 env:
- - "RAILS_VERSION=4.2.0"
+ - "RAILS_VERSION=4.2.1"
 
 notifications:
   irc: "irc.freenode.org#blacklight"