ColoredHelp is overridden by subcommands

[clux]

Currently .setting(AppSettings::ColoredHelp) has to be added to every subcommand even though it is set on the "global scope"

App::new("foo")
        .setting(AppSettings::ColoredHelp)
        .subcommand(SubCommand::with_name("bar"))

foo help # gives colored output
foo help bar # uncolored

It probably makes sense to inherit this value from parent, rather than adding it everywhere, right?

[kbknapp]

Thanks for filing this! Great point, I hadn't considered that. There are an increasing number of settings that one would intuitively think would be propagated down through child commands, but aren't.

I'm thinking of adding an App::global_setting(s) to do just that.

[kbknapp]

#520 fixes this

[clux]

Awesome, thank you!