Upgrade to npmv2, reenable sauce connect tunnel.

.travis.yml

@@ -16,18 +16,16 @@ env:
     - TEST_FUNC_PORT=3030
     - TEST_FUNC_HOST=127.0.0.1
     - TEST_PARALLEL=true
-    # Hitting `No active tunnel found for identifier` issues, e.g.:
-    # https://saucelabs.com/jobs/dcc5f828edb6462ca7735062d87ebce1
-    # going _without_ for now...
-    #
-    #- SAUCE_CONNECT_TUNNEL_ID=TRAVIS_FMD_REQUIREPACK_${TRAVIS_JOB_NUMBER}
+    - SAUCE_CONNECT_TUNNEL_ID=TRAVIS_FMD_REQUIREPACK_${TRAVIS_JOB_NUMBER}
     - SAUCE_USERNAME=requirepack
     - secure: "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"
 
 before_install:
   # GUI for real browsers.
   - export DISPLAY=:99.0
   - sh -e /etc/init.d/xvfb start
+  # Upgrade to npm v2
+  - npm install -g npm@2
 
 before_script:
   # Install dev. stuff (e.g., selenium drivers).