added 30 minutes to travis for unit test execution

Author: plamen5kov

.travis.yml

@@ -38,7 +38,7 @@ after_script:
   - echo no | android create avd --force -n Arm21 -t android-21 -b armeabi-v7a -c 12M
   - emulator -avd Arm21 -no-skin -no-audio -no-window &
   - android-wait-for-emulator
-  - "cd test-app && ./gradlew runtest --stacktrace"
+  - "travis_wait 30 cd test-app && ./gradlew runtest --stacktrace"
   - "cd .."
 before_deploy:
   - FULL_PACKAGE_VERSION=`sed -n 's/\s*"version":\s*"\([a-zA-Z0-9.\-]\+\)"/\1/p' dist/package.json`