Increase travis_wait for potential timeouts.

.travis.yml

@@ -19,17 +19,17 @@ cache:
     - node_modules
 
 before_install:
-  - yarn run global
+  - travis_wait 15 yarn run global
 
 install:
-  - yarn install
+  - travis_wait 15 yarn install
 
 before_script:
-  - yarn run build
+  - travis_wait 20 yarn run build
   - export CHROME_BIN=chromium-browser
   - export DISPLAY=:99.0
   - sh -e /etc/init.d/xvfb start
   - sleep 3
 
 script:
-  - yarn run ci
+  - travis_wait 20 yarn run ci