Support nested jshint configurations

[artursmirnov]

My application has main .jshintrc configuration in root folder, which works just fine. But for tests there is another configuration located at tests/.jshintrc that has a lot of predefs for test helpers. And the extension ignores tests configuration and applies the main one.

The case is common for most Ember CLI apps.

[jaysylvester]

I have a project-level .jshintrc file and then a couple more sprinkled throughout that extend the project config. The project config handles basic formatting that I want to apply to all JS files, and the nested files handle different parts of the app (node.js server-side vs front end static library, which have different browser, node, and predef settings).

This workflow works in other editors, so I'd love to see it in VS Code.

[edwin177]

+1