update travis script to fail earlier (#46)

.travis.yml

diff --git a/.travis.yml b/.travis.yml
index d066c07..4650b4b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -33,9 +33,7 @@
 - "./tools/travis/setup.sh"
 install: true
 script:
-- "./tools/travis/build.sh"
-- "./tools/travis/deploy.sh"
-- "./tools/travis/test.sh"
+- "./tools/travis/build.sh && ./tools/travis/deploy.sh && ./tools/travis/test.sh"
 deploy:
   - provider: script
     script: "./tools/travis/publish.sh openwhisk ${TRAVIS_TAG%@*} ${TRAVIS_TAG##*@}"