Run documentation --lint in own tests

[tmcw]

Right now we have some warnings in documentation's own source

/Users/tmcw/src/documentation/index.js
       48:1  warning  @memberof reference to module not found

/Users/tmcw/src/documentation/lib/flatten.js
      105:1  warning  @memberof reference to module not found

/Users/tmcw/src/documentation/lib/output/html.js
       38:1  warning  @memberof reference to module not found

/Users/tmcw/src/documentation/lib/infer/kind.js
        8:1  warning  @memberof reference to module not found

/Users/tmcw/src/documentation/lib/infer/name.js
        6:1  warning  @memberof reference to module not found

/Users/tmcw/src/documentation/lib/infer/params.js
        8:1  warning  @memberof reference to module not found

/Users/tmcw/src/documentation/lib/infer/properties.js
        7:1  warning  @memberof reference to module not found

/Users/tmcw/src/documentation/lib/infer/return.js
        6:1  warning  @memberof reference to module not found

/Users/tmcw/src/documentation/lib/is_jsdoc_comment.js
        3:1  warning  @memberof reference to module not found

/Users/tmcw/src/documentation/lib/output/json.js
        5:1  warning  @memberof reference to module not found

/Users/tmcw/src/documentation/lib/github.js
       11:1  warning  @memberof reference to module not found

/Users/tmcw/src/documentation/lib/output/markdown.js
        7:1  warning  @memberof reference to module not found

/Users/tmcw/src/documentation/lib/normalize.js
        5:1  warning  @memberof reference to module not found

/Users/tmcw/src/documentation/lib/module_filters.js
       14:1  warning  @memberof reference to module_filters not found

⚠ 14 warnings