Merge pull request #1 from plokko/master

Update .travis.yml

Author: plokko

.travis.yml

@@ -18,7 +18,7 @@ install:
   - travis_retry composer update ${COMPOSER_FLAGS} --no-interaction
   - sudo add-apt-repository -y ppa:mc3man/trusty-media
   - sudo apt-get -qq update
-  - sudo apt-get install -y software-properties-common ffmpeg
+  - sudo apt-get install -y --allow-unauthenticated software-properties-common ffmpeg
 
 script:
-  - phpunit
+  - phpunit