Run swift build on CI

ishkawa · ishkawa · commit 5bddab0f9538 · 2016-11-21T11:00:14.000+09:00
diff --git a/.travis.yml b/.travis.yml
@@ -5,4 +5,5 @@ osx_image: xcode8
 script: 
   - set -o pipefail
   - xcodebuild build-for-testing test-without-building -workspace Action.xcworkspace -scheme Action -sdk iphonesimulator -destination "name=iPhone SE" | xcpretty -c
+  - swift build
 
