[1.7.0] Various updates

- Implement addModule(), requires new userModules property
- Remove unnecessary $config passing for getElement(s)
- Revamp HTMLModuleManagerTest
- Fix buggy unit test for unrecognized parent
- Remove anonymous generator member variable from ChildDef_Required

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1063 48356398-32a2-884e-a903-53898d9a118a

tests/HTMLPurifier/Strategy/FixNestingTest.php

@@ -107,7 +107,7 @@ class HTMLPurifier_Strategy_FixNestingTest extends HTMLPurifier_StrategyHarness
         
         $this->expectError('Cannot use unrecognized element as parent.');
         $this->assertResult(
-            '<div>Accept</div>', true, array('HTML.Parent' => 'script')
+            '<div>Accept</div>', true, array('HTML.Parent' => 'fling')
         );
         
     }