Upgrade Travis to run on Xcode 8.3

dmcrodrigues · dmcrodrigues · commit 846ba548191f · 2017-04-07T11:25:32.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,5 @@
 language: objective-c
-osx_image: xcode8.2
+osx_image: xcode8.3
 branches:
   only:
     - master
