Starting doing some bulk testing and transformations:

- FEATURES: updated, added mode support for templates
- pattern.[ch] transform.c xslt.c xsltInternals.h: added mode
  support for templates
- templates.c variables.c: simple fixes
- xslt.c: added a separate DEBUG_BLANKS debug class disabled
- xsltproc.c: added option -timing
- xsltutils.c: seem I forgot to add encoding support in output...
- configure.in tests/Makefile.am tests/xmlspec/*: added a test
  consisting of reformatting the XML REC with the xmlspec XSLT,
  heavy !
Daniel