[1.7.0] Finish implementing legacy elements, begin implementing legacy attributes

- Migrated most unit tests over to XHTML 1.0 Strict to preserve transformation behavior
- Created %Core.ColorKeywords to be shared between CSS_Color and HTML_Color
- Added AttrDef_HTML_Color as AttrType Color
- HTMLPurifier_Config::create(HTMLPurifier_Config $config) now clones the object
- Attribute minimization for HTML implemented in Generator
- Move div@align fix from proprietary to regular set
- Color keywords now map to full six digit hexadecimal codes
- Harness will now tack on per-use-case configuration

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1084 48356398-32a2-884e-a903-53898d9a118a

tests/HTMLPurifier/AttrDef/HTML/ColorTest.php

@@ -0,0 +1,23 @@
+<?php
+
+require_once 'HTMLPurifier/AttrDefHarness.php';
+require_once 'HTMLPurifier/AttrDef/HTML/Color.php';
+
+class HTMLPurifier_AttrDef_HTML_ColorTest extends HTMLPurifier_AttrDefHarness
+{
+    
+    function test() {
+        $this->def = new HTMLPurifier_AttrDef_HTML_Color();
+        $this->assertDef('', false);
+        $this->assertDef('foo', false);
+        $this->assertDef('43', false);
+        $this->assertDef('red', '#FF0000');
+        $this->assertDef('#FF0000');
+        $this->assertDef('#453443');
+        $this->assertDef('453443', '#453443');
+        $this->assertDef('#345', '#334455');
+        $this->assertDef('120', '#112200');
+    }
+}
+
+?>