- Replace integer ids with IDString for localnames, prefixes and namespaces of elements and attributes.
    It means that it's easy now to convert Integer id <-> IDString <-> DOMString.
- Big cleanup of attribute-related code.
- Several bugfixes in css namespaces.
- A lot of small changes along the way (e.g. more accurate handling of html/xhtml case-sensitivity behaviour)
The code changes core DOM structure, so there might be some regressions, but in general
it looks much simpler now and it should be easier to fix any related bugs.


svn path=/trunk/KDE/kdelibs/; revision=867535