Merge pull request #556 from libgit2/arthur/update-ruby

Update the list of ruby versions to build on Travis

Author: arthurschreiber

.travis.yml

@@ -3,13 +3,12 @@ cache: bundler
 
 os:
   - linux
-  - osx
 
 rvm:
-  - 1.9.3
   - 2.0.0
-  - 2.1.7
-  - 2.2.3
+  - 2.1.8
+  - 2.2.4
+  - 2.3.0
   - ruby-head
   - rbx-2
 
@@ -28,6 +27,15 @@ matrix:
   allow_failures:
     - rvm: rbx-2
     - rvm: ruby-head
+  include:
+    - os: osx
+      rvm: 2.0.0
+    - os: osx
+      rvm: 2.1.5
+    - os: osx
+      rvm: 2.2.2
+    - os: osx
+      rvm: rbx-2
 
 before_install:
   - if [ "$TRAVIS_OS_NAME" = "osx" ]; then ./vendor/libgit2/script/install-deps-osx.sh; fi