use xerces-c: ParserFactory and HrdMapper
use xerces-c: HrcParserImpl
use xerces-c: ConsoleTools
use xerces-c: remove xmldom.h/xmldom.cpp
use xerces-c: some warnings
use xerces-c: support archive
use xerces-c: refactoring
use xerces-c: support environment variable
some fix
add submodule xerces-c library
merge branch xercesc - now use the xerces-c library for working with xml
zlib switched to the submodule
dlmalloc switched to the submodule