Use xcpretty for xcodebuild on Travis

.travis-build.sh

@@ -18,5 +18,5 @@ elif [ "$TRAVIS_OS_NAME" = "osx" ]; then
     export Qt5_DIR=$(brew --prefix)/opt/qt5
     mkdir build && cd build
     cmake .. -GXcode
-    xcodebuild -configuration Release
+    xcodebuild -configuration Release | xcpretty -c && exit ${PIPESTATUS[0]}
 fi

.travis-deps.sh

@@ -26,4 +26,5 @@ if [ "$TRAVIS_OS_NAME" = "linux" -o -z "$TRAVIS_OS_NAME" ]; then
 elif [ "$TRAVIS_OS_NAME" = "osx" ]; then
     brew tap homebrew/versions
     brew install qt5 glfw3 pkgconfig
+    gem install xcpretty
 fi