Update travis config to Xcode8

jcavar · jcavar · commit 878260dbffe1 · 2016-09-21T19:08:44.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,3 +1,3 @@
 language: objective-c
-osx_image: xcode7
+osx_image: xcode8
 script: xcodebuild test -scheme Refresher -sdk iphonesimulator
