Use new way to run xvfb on Travis CI (#658)

.travis.yml

@@ -3,17 +3,18 @@ sudo: false
 rvm:
   - 2.3
 services:
+  - xvfb
   - mysql
   - redis-server
 addons:
   apt:
     packages:
       - libmagic-dev
-      - metacity
+      - qt5-default
+      - libqt5webkit5-dev
+      - gstreamer1.0-plugins-base
+      - gstreamer1.0-tools
 env: COVERALLS=1
-before_install:
-  - export DISPLAY=:99.0
-  - sh -e /etc/init.d/xvfb start
 cache: bundler
 bundler_args:
   - "--without development --deployment --jobs=3 --retry=3"
@@ -23,4 +24,4 @@ before_script:
   - "mysql -e 'grant all on foodsoft_test.* to travis;'"
   - 'printf "test:\n  adapter: mysql2\n  database: foodsoft_test\n  username: travis\n  encoding: utf8\n" >config/database.yml'
   - 'bundle exec rake db:schema:load RAILS_ENV=test'
-script: bundle exec rake rspec-rerun:spec
+script: xvfb-run -a bundle exec rake rspec-rerun:spec