First pass a updating the user autocomplete funtion to allow for searching on more than just the username...  Autocomplete now returns the First/Last name and email of the user searching (if the last name is set), if no last name exists, we are returning the username/email as it did in drupal 6.  This also removes the ability to add search for the admin account.  This still needs much work amd close observations for issues this may cause as the entire user/autocomplete functionaility is now using this function.  #341