Add eslint as devDependency
Add eslint as devDependency

Otherwise triggers EPEERINVALID.

See https://github.com/emgeee/gulp-standard/issues/14

rxlabs/tasty-todos,makenew/tasty-brunch,rxlabs/tasty-todos,makenew/tasty-brunch,rxlabs/tasty-todos,makenew/tasty-brunch