[1.7.0] Create ConfigForm printer classes

- Extend hash to convert strings from form key,value,key,value
- Hack up configdoc to accommodate configForm.php smoketest

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1101 48356398-32a2-884e-a903-53898d9a118a

smoketests/all.php

@@ -29,6 +29,7 @@ while (false !== ($filename = readdir($dh))) {
     if (strpos($filename, '.php') === false) continue;
     if ($filename == 'common.php') continue;
     if ($filename == 'all.php') continue;
+    if ($filename == 'testSchema.php') continue;
     ?>
     <iframe src="<?php echo escapeHTML($filename); ?>"></iframe>
     <?php