Feature suggestion: add some hooks

Hi all,

Including a few hooks would be very useful for customization. For example, I added the following in archive-question.php just after the opening qa-page-wrapper tag so I could include an introductory text/image:
<?php do_action( 'qa_before_content' ) ?>
A simple addition in a theme's functions.php gets the intro message at the top of the main Q&A page:

function custom_qa_intro () {
  echo '<div id="qa-intro">
  Intro text here
  </div>';
}
add_action ('qa_before_content', 'custom_qa_intro');

For now, I'll have to remember to add the hook back in when the plugin updates.