language:node_jsnode_js:-"0.10"-"0.12"-"4"-"6"-"8"sudo:false# use g++-4.8 for karmacache:-aptaddons:apt:sources:-ubuntu-toolchain-r-testpackages:-g++-4.8-libstdc++-4.8-devfirefox:"39.0"before_install:-export CXX="g++-4.8" CC="gcc-4.8"-export "PATH=./node_modules/.bin:$PATH"install:npm install# start X server for firefoxbefore_script:-"exportDISPLAY=:99.0"-"sh-e/etc/init.d/xvfbstart"-sleep 3# give xvfb some time to startscript:-gulp lint-gulp dist-gulp test karmaafter_success:-gulp coveralls