Log Message:
Update to 1.0.29:
1.0.29: Apr 1 2003:
   - performance improvements especially for large flat documents
   - bug fixes: Result Value Tree handling, XML IDs, keys(), extra namespace
    declarations with xsl:elements.
   - portability: python and trio fixes (Albert Chin), python on Solaris
    (Ben Phillips)

1.0.28: Mar 24 2003:
   - fixed node() in patterns semantic.
   - fixed a memory access problem in format-number()
   - fixed stack overflow in recursive global variable or params
   - cleaned up Result Value Tree handling, and fixed a couple of old bugs
    in the process