Log Message:
Update to 20050921, provided by Jeroen Ruigrok/asmodai in PR 31220.

fix crashes with nested framesets
fix dmalloc conflicts
fix crashes with invalid x/html tags
fix memory corruptions
fix attributes with null values
replace tabs with spaces
a lot generic stability fixes
fix accessibility crashes
accessibility missing output added
use id= instead of a name=
fix crashes with mixed php-like code in html
fix memory leaks
xml: was stripped from xml:lang
make sure id and name are identical when used
do not add xml:lang for XHTML 1.1
check validity of id/name values
a lot of new options for finegrained control
support align="char"
fix 64 bit portability issues
fix support for nested <sub> and <sup>
make sure id's are unique
be more resistant against malformed comments
make sure attribute values are lowercase for xhtml specified values
ensure xml declarations are present
allow empty action="" to form
area does not need a mandatory href