- Make specifying the child property for ElementDef unnecessary when overloading content_model or content_model_type
- Add necessary includes to Tidy module files
- Move div@align fix to Tidy_Proprietary
- Future proof attrTransform.php by setting doctype to strict
git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1071 48356398-32a2-884e-a903-53898d9a118a