.travis.yml in simctl-1.2.3 vs .travis.yml in simctl-1.3.0

@@ -1,6 +1,6 @@
 language: objective-c
-osx_image: xcode7.2
+osx_image: xcode7.3
 before_script:
   - export LANG=en_US.UTF-8
 install: bundle
 script:
   - bundle exec rake