build: skip istanbul coverage on Node.js 0.8
build: skip istanbul coverage on Node.js 0.8

shijun/cookie-session,parshap/cookie-session,trevorsch/cookie-sessions-practice-repo,jameswomack/cookie-session,gabeio/cookie-session,arover/ws-cookie-session,expressjs/cookie-session,noikiy/cookie-session,substantial/cookie-session