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
diff --git a/doc/APIsymbols.html b/doc/APIsymbols.html
index bed8441..b1fd6a6 100644
--- a/doc/APIsymbols.html
+++ b/doc/APIsymbols.html
@@ -1254,6 +1254,7 @@
 <a href="html/libxml-xpath.html#XPATH_EXPR_ERROR">XPATH_EXPR_ERROR</a><br />
 <a href="html/libxml-xpath.html#XPATH_INVALID_ARITY">XPATH_INVALID_ARITY</a><br />
 <a href="html/libxml-xpath.html#XPATH_INVALID_CHAR_ERROR">XPATH_INVALID_CHAR_ERROR</a><br />
+<a href="html/libxml-xpath.html#XPATH_INVALID_CTXT">XPATH_INVALID_CTXT</a><br />
 <a href="html/libxml-xpath.html#XPATH_INVALID_CTXT_POSITION">XPATH_INVALID_CTXT_POSITION</a><br />
 <a href="html/libxml-xpath.html#XPATH_INVALID_CTXT_SIZE">XPATH_INVALID_CTXT_SIZE</a><br />
 <a href="html/libxml-xpath.html#XPATH_INVALID_OPERAND">XPATH_INVALID_OPERAND</a><br />