test(e2e): run e2e tests on Travis

Fixes angular#229

.travis.yml

@@ -21,18 +21,22 @@ cache:
 env:
   - CXX=g++-4.8
 
+before_install:
+  - export CHROME_BIN=chromium-browser
+
 install:
   - npm install
+  - ./node_modules/.bin/typings install
 
 before_script:
   - export DISPLAY=:99.0
   - sh -e /etc/init.d/xvfb start
 
 script:
-  - npm run build
+  - npm run build_e2e
+  - ./node_modules/.bin/protractor protractor.conf.js
   - ./node_modules/.bin/karma start --single-run --browsers Firefox
-  # Can't run until https://github.com/angular/protractor/issues/2784 is resolved
-  #- ./node_modules/.bin/protractor protractor.conf.js --browser firefox
+
 
 notifications:
   webhooks: