[2.1.0] Implement Ruby.

- Destroy some zombie context variables
- Reorganize some TODO items

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1347 48356398-32a2-884e-a903-53898d9a118a

docs/dev-code-quality.txt

@@ -11,8 +11,7 @@ docs/examples/demo.php - ad hoc HTML/PHP soup to the extreme
 
 AttrDef - a lot of duplication, more generic classes need to be created;
 a lot of strtolower() calls, no legit casing
-    Class - doesn't support Unicode characters (fringe); uses regular
-        expressions
+    Class - doesn't support Unicode characters (fringe); uses regular expressions
     Lang - code duplication; premature optimization
     Length - easily mistaken for CSSLength
     URI - multiple regular expressions; missing validation for parts (?)
@@ -22,9 +21,6 @@ ConfigSchema - redefinition is a mess
 Strategy
     FixNesting - cannot bubble nodes out of structures, duplicated checks
         for special-case parent node
-    MakeWellFormed - insufficient automatic closing definitions (check HTML
-        spec for optional end tags, also, closing based on type (block/inline)
-        might be efficient).
     RemoveForeignElements - should be run in parallel with MakeWellFormed
 URIScheme - needs to have callable generic checks
     mailto - doesn't validate emails, doesn't validate querystring

docs/proposal-new-directives.txt

@@ -2,7 +2,8 @@
 Configuration Ideas
 
 Here are some theoretical configuration ideas that we could implement some
-time.  Note the naming convention: %Namespace.Directive
+time.  Note the naming convention: %Namespace.Directive. If you want one
+implemented, give us a ring, and we'll move it up the priority chain.
 
 %Attr.RewriteFragments - if there's %Attr.IDPrefix we may want to transparently
     rewrite the URLs we parse too.  However, we can only do it when it's a pure