Please add support for rubocop config file setting in settings

[adamluzsi]

Your environment

• vscode-ruby version: 0.10.4
• Ruby version: ruby 2.3.0p0 (2015-12-25 revision 53290) [x86_64-darwin15]
• VS Code version: 1.10.2
• Operating System: Mac OS
• Hardware (optional): MacBook Pro (Retina, 13-inch, Early 2015)

Expected behavior

It would be great to have option for rubocop config yml setting configuration option for rubocop linter

{
    "ruby.lint": {

        "rubocop": {
            "configFilePath": "~/.rubocop.yml"
        },
    },
}

[wingrunr21]

Closing for issue cleanup. Apologies if this is still an issue. We are working to improve the core extension experience.