Install libfuse on travis in a smarter way

Author: Munter

.travis.yml

@@ -17,9 +17,9 @@ addons:
     packages:
       - gcc-4.8
       - g++-4.8
+      - libfuse-dev
 env: CXX="g++-4.8" CC="gcc-4.8"
 
-before_install: "sudo apt-get update && sudo apt-get install libfuse-dev"
 script: "npm run-script travis"
 after_success: "<coverage/lcov.info ./node_modules/coveralls/bin/coveralls.js"