Furious hacking session, making serious progresses, the hardest stuff

Furious hacking session, making serious progresses, the hardest stuff
now seems in place !!!
* xsltproc.c: removed bug
* tests/REC2/html.xml: added newline after doctype
* libxslt/variables.[ch] libxslt/xsltInternals.h: added param
  support, result tree fragment support (requires just commited
  extensions to libxml2 XPath !!!)
* transform.c: added call-template, with-param support
* libxslt/pattern.[ch]: xsltFindTemplate() needed for call-template
* TODO: updated, added a DONE section and started migrating stuff :-)
Daniel