integrated in "make tests" added -q option, and more conditional features

* Makefile.am gentest.py testapi.c: integrated in "make tests"
  added -q option, and more conditional features fixes
* catalog.c debugXML.c parser.c testThreads.c xmllint.c
  xmlschemastypes.c xmlwriter.cinclude/libxml/catalog.h
  include/libxml/debugXML.h: various compilation and conditional
  cleanups.
* doc/*: regenerated
Daniel
32 files changed