You can create a config 'headdata' and in it define meta information that way. The library also understands inheritance, so repeating of a lot code is under your discretion.
Code:
'authors' => array(
'html' => array(
'lang' => 'en',
'dir' => 'ltr',
'doctype' => 'xhtml11',
),
'meta' => array(
'keywords' => array(
'name' => 'keywords',
'content' => 'this is a keyword',
),
'description' => array(
'name' => 'description',
'content' => 'this is a description',
),
'author' => array(
'name' => 'author',
'content' => '2012 Devraid',
),
'content-type' => array(
'http-equiv' => 'content-type',
'content' => 'text/html; charset=UTF-8',
),
'content-language' => array(
'http-equiv' => 'content-language',
'content' => 'en',
),
),
'link' => array(
array(
'rel' => 'stylesheet',
'type' => 'text/css',
'href' => '/css/blueprint/screen.css',
'media' => 'screen, projection',
),
array(
'rel' => 'stylesheet',
'type' => 'text/css',
'href' => '/css/blueprint/custom.css',
'media' => 'screen, projection',
),
array(
'rel' => 'stylesheet',
'type' => 'text/css',
'href' => '/css/blueprint/print.css',
'media' => 'print',
),
array(
'ie' => '8',
'rel' => 'stylesheet',
'type' => 'text/css',
'href' => 'css/blueprint/ie.css',
'media' => 'print',
),
array(
'rel' => 'stylesheet',
'type' => 'text/css',
'href' => '/css/blueprint/wysiwyg-bbcode.css',
'media' => 'screen',
),
),
'javascript' => array(
array(
'src' => '/js/suckerfishiefix.js',
),
array(
'src' => '/js/wysiwyg-bbcode.js',
),
array(
'src' => '/js/custom.js',
),
),
),
'authors/register' => array(
'inherit' => TRUE,
),