[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

tests/HTMLPurifier/LanguageTest.php

@@ -37,7 +37,7 @@ class HTMLPurifier_LanguageTest extends HTMLPurifier_Harness
     function test_formatMessage_tokenParameter() {
         $config = HTMLPurifier_Config::createDefault();
         $context = new HTMLPurifier_Context();
-        $generator = new HTMLPurifier_Generator(); // replace with mock if this gets icky
+        $generator = new HTMLPurifier_Generator($config, $context); // replace with mock if this gets icky
         $context->register('Generator', $generator);
         $lang = new HTMLPurifier_Language($config, $context);
         $lang->_loaded = true;