Now if you specifically provide an empty `@title` tag
for a contents file, the doc-gen will not complain and
the browser will just display a reasonable default.
Documents can specify their title via the `title` or `name` jsdoc tags.
This change adds that, if neither are provided, the first `<h1>` element
is removed from the `renderedContent` and used for the title.
If there is still no title then it is set to the empty string and a warning
is logged.
Peter Bacon Darwin
Jesus Rodriguez