[3.1.1] Land vs's HTMLPurifier_Generator patch, and a number of other bugfixes for that change

- Convert a number of calls to use new constructor signature for Generator
- Make generator require configuration; this exposes a number of latent bugs
- Removed generator hack
- Convert Printers to use new optimized ConfigSchema format
- Hack with Printer configuration; pass an array(generator config, render config) to distinguish between output and target.
- HTML/CSS Printers need to be primed, otherwise fatal errors
- Convert a few test-cases to use member properties

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1770 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/Printer.php

@@ -20,18 +20,15 @@ class HTMLPurifier_Printer
      * Initialize $generator.
      */
     public function __construct() {
-        $this->generator = new HTMLPurifier_Generator();
     }
     
     /**
      * Give generator necessary configuration if possible
      */
     public function prepareGenerator($config) {
-        // hack for smoketests/configForm.php
         $all = $config->getAll();
-        if (empty($all['HTML'])) return;
         $context = new HTMLPurifier_Context();
-        $this->generator->generateFromTokens(array(), $config, $context);
+        $this->generator = new HTMLPurifier_Generator($config, $context);
     }
     
     /**