[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/Generator.php

@@ -35,8 +35,7 @@ class HTMLPurifier_Generator
      * @param $config Instance of HTMLPurifier_Config
      * @param $context Instance of HTMLPurifier_Context
      */
-    public function __construct($config = null, $context = null) {
-        if (!$config) $config = HTMLPurifier_Config::createDefault();
+    public function __construct($config, $context) {
         $this->config = $config;
         $this->_scriptFix = $config->get('Output', 'CommentScriptContents');
         $this->_def = $config->getHTMLDefinition();