@ignore entire (CommonJS) module

For `@ignore`, [JSDoc says](http://usejsdoc.org/tags-ignore.html), “If you use the `@ignore` tag with the `@class` or `@module` tag, the entire class or module will be omitted from the documentation.” I haven’t tried it on a `@class`, but the only effect it seems to have at the `@module` level is to suppress the module entry, not any of its children, as the above implies. I’m using CommonJS modules, if that makes a difference.

`documentation@4.0.0-beta.19`