Install xcpretty on travis

Also enabled fast_finish for builds

Author: phatblat

.travis.yml

@@ -1,14 +1,17 @@
 osx_image: xcode7
 language: objective-c
 matrix:
+  fast_finish: true:
   include:
     - osx_image: xcode7
-      env: SCHEME="ObjectiveGit Mac"
-    - osx_image: xcode7
-      env: SCHEME="ObjectiveGit iOS"
+      env:
+        - SCHEME="ObjectiveGit Mac"
+    - osx_image: xcode7.3
+      env:
+        - SCHEME="ObjectiveGit iOS"
 before_install:
-  - brew update
-  - brew outdated xctool || brew upgrade xctool
+  - gem install xcpretty
+  - gem install xcpretty-travis-formatter
 install: script/bootstrap
 script: script/cibuild
 notifications: