Manually start packager and print logs when tests fail

.travis.yml

@@ -4,12 +4,24 @@ before_install:
   - brew reinstall xctool
 install:
   - npm install
+before_script:
   - npm test
-env:
-  - secure: "g8Xjbslq4R+3oLVgBvXM5QhiJ+7q+H+dH4+sXReyyZ64M5gf32U7oOjQNVkdx79dnGFc6a619otGsX4RiEkQlkiR+4uCgJUIgPwN4YFCIgYu4Z/0FnbbRu5yyywh5zv4WwGmAtMkgGztoMBnps5gCiPUM/RGIqwVk0Ghbmh5c2k="
+  - (npm start > packager.log 2>&1 &) && echo $! > packager.pid
+
 script: ./build.sh 8.1
+
+after_script:
+  - pkill -9 `cat packager.pid`
+  - cat packager.log
+  - rm packager.log
+  - rm packager.pid
+
 # Automatically publish the website
 after_success: '[ "${TRAVIS_PULL_REQUEST}" = "false" ] && (cd website; npm install; ./setup.sh; ./publish.sh; echo) || echo'
+
+env:
+  - secure: "g8Xjbslq4R+3oLVgBvXM5QhiJ+7q+H+dH4+sXReyyZ64M5gf32U7oOjQNVkdx79dnGFc6a619otGsX4RiEkQlkiR+4uCgJUIgPwN4YFCIgYu4Z/0FnbbRu5yyywh5zv4WwGmAtMkgGztoMBnps5gCiPUM/RGIqwVk0Ghbmh5c2k="
+
 branches:
   only:
     - master