Use Xcode 7.3 on Travis CI

bcylin · bcylin · commit 333e4607b9b7 · 2016-03-24T00:38:06.000+08:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,5 @@
 language: objective-c
-osx_image: xcode7.2
+osx_image: xcode7.3
 env:
   matrix:
   - VERSION=8.4
