added a skipped list, insert rmt-ns10-035 improve 'make check' clean up

* runxmlconf.c: added a skipped list, insert rmt-ns10-035
* Makefile.am: improve 'make check'
* include/libxml/xmlerror.h parser.c: clean up namespace errors
  checking and reporting, errors when a document is labelled
  as UTF-16 while it is parsed as UTF-8 and no encoding was given
  explicitely.
* result/errors/webdav.xml.*: some warnings are no recategorized
  as Namespace errors
Daniel

svn path=/trunk/; revision=3761