Blueprints assume jshint is being used

[hidnasio]

Since ember-cli 2.12.0 the default linter is eslint. This addon always generates manifest.json with a jshint configuration. It would be nice if the addon could detect which linter is being used.

Current configuration /*jshint node:true*/
Expected for projects using eslint /* eslint-env node */

[san650]

I'll change the blueprints to generate the eslint version. It doesn't make sense to keep having jshint.