Merge pull request angular-ui#2065 from Jefiozie/FixTravis

CI(Travis) fixing the travis build.

Author: Jefiozie

.travis.yml

@@ -7,14 +7,16 @@ env:
     - GH_REF: github.com/angular-ui/ui-select.git
     - GH_PAGES_BRANCH: gh-pages
     - secure: "PkIhXXwrR5fHh7fH+2WizaY0MmK1l1Dr7PCqs112PkEimVPcntRJeA5pjTwGRwHm+RSkFVtfo38EY/GUwzhLSRTO7WZ+id+vIMGQLgiofqrOwi0nq93esG6qI8Jg5K0GUt8mzg5m9B2tgm2I91RAojEhIukKcbsDsq3hNAUy71Y="
-
 addons:
+  firefox: "31.0"
+
   apt:
     sources:
       - ubuntu-toolchain-r-test
     packages:
       - g++-4.8
 
+
 before_script:
   - export DISPLAY=:99.0
   - sh -e /etc/init.d/xvfb start

package.json

@@ -41,7 +41,7 @@
     "karma": "^0.12.16",
     "karma-chrome-launcher": "^0.1.3",
     "karma-coverage": "~0.2",
-    "karma-firefox-launcher": "~0.1",
+    "karma-firefox-launcher": "~1.0",
     "karma-jasmine": "~0.2",
     "karma-ng-html2js-preprocessor": "^0.1.0",
     "karma-phantomjs-launcher": "~0.1.4",