Update ESLint to v2.8.0
Update ESLint to v2.8.0

https://github.com/eslint/eslint/blob/master/CHANGELOG.md

s1na/sc2map,nagucc/jkef-model,your-mirror/sk-task2.1,mibu5/skb-backend1,skillbranch/task2a,Polurival/Skillbranch-Node.JS,ynu/ecard-api,vvgulyaev/nodejs_task2,kriasoft/babel-starter-kit,ynu/ecard-api,langpavel/node-sql-fan,alexpractice/username,ynu/itrm-api-for-client,s-mironov31/skb4,bupaev/skb-mern-course,s1na/sc2map,s-mironov31/react-web,nullskill/skb2C,seasalt88/lessons,hiteshjoshi/babel-starter-kit,Sistemnik/skb1,sedovdmitry/skillbranch,kinelit/skb,ynu/ecard-api,evnastik/skillbranch,rdbmw/skillbranch,loremtest/skb5-with-storybook,vvgulyaev/nodejs_task2,nagucc/jkef-api,housemex408/ES6-Practice,hiteshjoshi/babel-starter-kit,chetanism/proptype,mpkluft/SkillBranch,DarkGenius/skb-node-react,MariaMironova/SkillBranch_HomeTask2,anaxaim/lesson2C,s1na/sc2map