Merge pull request #65 from Carthage/travis-xcodebuild

[Travis] Replace xctool with plain xcodebuild

Author: NachoSoto

.travis.yml

@@ -2,7 +2,12 @@ language: objective-c
 osx_image: xcode7.3
 xcode_workspace: ReactiveTask.xcworkspace
 xcode_scheme: ReactiveTask
-script: script/cibuild
+git:
+  submodules: false
+before_script:
+  - git submodule update --init --recursive
+script:
+  - set -o pipefail && xcodebuild -workspace "$TRAVIS_XCODE_WORKSPACE" -scheme "$TRAVIS_XCODE_SCHEME" test | xcpretty
 notifications:
   email: false
   slack: