[3.1.0] Landed modified patch by Braden Anderson for %CSS.AllowedProperties

- Fix broken ConfigSchema build, as well as broken aliases
- Remove another advisory property from runtime ConfigSchema classes
- Reorder flush script to more accurately reflect dependencies
- Remove some aliases from unit tests

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1635 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/ConfigSchema/schema/CSS.AllowedProperties.txt

@@ -0,0 +1,17 @@
+CSS.AllowedProperties
+TYPE: lookup/null
+VERSION: 3.1.0
+DEFAULT: NULL
+--DESCRIPTION--
+
+<p>
+    If HTML Purifier's style attributes set is unsatisfactory for your needs, 
+    you can overload it with your own list of tags to allow.  Note that this 
+    method is subtractive: it does its job by taking away from HTML Purifier 
+    usual feature set, so you cannot add an attribute that HTML Purifier never 
+    supported in the first place.
+</p>
+<p>
+    <strong>Warning:</strong> If another directive conflicts with the 
+    elements here, <em>that</em> directive will win and override. 
+</p>

library/HTMLPurifier/ConfigSchema/schema/Filter.ExtractStyleBlocksScope.txt

@@ -1,5 +1,5 @@
 Filter.ExtractStyleBlocksScope
-TYPE: string
+TYPE: string/null
 VERSION: 3.0.0
 DEFAULT: NULL
 --DESCRIPTION--