Cleanup

.travis.yml

   apt:
     sources:
       - ubuntu-toolchain-r-test
+      - sourceline: 'ppa:mc3man/trusty-media'
     packages:
       - libcairo2-dev
       - libjpeg8-dev
       - libpango1.0-dev
       - libgif-dev
       - g++-4.9
+      - ffmpeg
 env:
   - CXX=g++-4.9
 before_install:
   - npm explore npm -g -- npm install node-gyp@latest
-  - sudo add-apt-repository ppa:mc3man/trusty-media --yes
-  - sudo apt-get update
-  - sudo apt-get install ffmpeg
 sudo: required
 dist: trusty