am e1951c7a: Add new docs build flag -briefdocs that builds the docs and resolves jd links but doesn\'t output reference or browsable samples pages.

* commit 'e1951c7ae0c084a54990ef853a21987eea637d2a':
  Add new docs build flag -briefdocs that builds the docs and resolves jd links but doesn't output reference or browsable samples pages.