Drop Travis tests for Node 0.8
Drop Travis tests for Node 0.8

hujianfei1989/gitbook,thelastmile/gitbook,vehar/gitbook,jocr1627/gitbook,wewelove/gitbook,youprofit/gitbook,bjlxj2008/gitbook,tshoper/gitbook,palerdot/gitbook,2390183798/gitbook,lucciano/gitbook,codepiano/gitbook,webwlsong/gitbook,a-moses/gitbook,GitbookIO/gitbook,sunlianghua/gitbook,sudobashme/gitbook,yaonphy/SwiftBlog,qingying5810/gitbook,shibe97/gitbook,minghe/gitbook,xiongjungit/gitbook,Abhikos/gitbook,grokcoder/gitbook,escopecz/documentation,JohnTroony/gitbook,gdbooks/gitbook,grokcoder/gitbook,iamchenxin/gitbook,FKV587/gitbook,Keystion/gitbook,gencer/gitbook,iflyup/gitbook,youprofit/gitbook,ryanswanson/gitbook,lucciano/gitbook,xcv58/gitbook,gaearon/gitbook,ferrior30/gitbook,rohan07/gitbook,bradparks/gitbook,palerdot/gitbook,nycitt/gitbook,haamop/documentation,sudobashme/gitbook,alex-dixon/gitbook,kamyu104/gitbook,snowsnail/gitbook,xcv58/gitbook,ferrior30/gitbook,OriPekelman/gitbook,sunlianghua/gitbook,hujianfei1989/gitbook,codepiano/gitbook,a-moses/gitbook,intfrr/gitbook,FKV587/gitbook,2390183798/gitbook,athiruban/gitbook,justinleoye/gitbook,justinleoye/gitbook,jasonslyvia/gitbook,CN-Sean/gitbook,kamyu104/gitbook,minghe/gitbook,jasonslyvia/gitbook,wewelove/gitbook,JozoVilcek/gitbook,qingying5810/gitbook,boyXiong/gitbook,mautic/documentation,hongbinz/gitbook,haamop/documentation,rohan07/gitbook,guiquanz/gitbook,mruse/gitbook,gdbooks/gitbook,shibe97/gitbook,megumiteam/documentation,thelastmile/gitbook,OriPekelman/gitbook,JohnTroony/gitbook,boyXiong/gitbook,ZachLamb/gitbook,intfrr/gitbook,gaearon/gitbook,guiquanz/gitbook,ZachLamb/gitbook,anrim/gitbook,mautic/documentation,xiongjungit/gitbook,strawluffy/gitbook,snowsnail/gitbook,jocr1627/gitbook,npracht/documentation,megumiteam/documentation,bjlxj2008/gitbook,nycitt/gitbook,escopecz/documentation,xxxhycl2010/gitbook,webwlsong/gitbook,iflyup/gitbook,mruse/gitbook,alex-dixon/gitbook,hongbinz/gitbook,iamchenxin/gitbook,tzq668766/gitbook,switchspan/gitbook,tshoper/gitbook,npracht/documentation,bradparks/gitbook,switchspan/gitbook,tzq668766/gitbook,gencer/gitbook,CN-Sean/gitbook,athiruban/gitbook,xxxhycl2010/gitbook,vehar/gitbook