Set up author data for the author template immediately, rather than
waiting for the first the_post() call.
This removes the need to call the_post() and rewind_posts() in an
author template to print information about the author.
Fixes#346.
* Update PHPDoc.
* Add periods to the end of comment sentences.
* Limit line length to 80 chars.
* Use C++-style PHP comments only for function and file documentation.