Added call to XInitThreads, for required thread safety.
Fixed conversions between wchar_t and XMLCh strings. (Not tested much
yet.)
Fixed COLLADA too.
This was SVN commit r4964.
Moved skeleton definitions into XML format, to support multiple
different structures. (Not quite finished yet.)
Added support for rescaled models in XSI.
Minor refactoring.
This was SVN commit r4959.