move some definitions to xml_common.h

changing dom_object_get_data to php_dom_object_get_data and PHP_DOM_EXPORT it
(by Rob Richards)

add interop with simplexml - dom_import_simplexml
fix cloneNode with elements

move some document properties internally
add xpath namespace support (by Shane)

implement stricterrorcheck
fix clonenode
cleanup error routines
forgot these files

initial xpath implementation
make dom_object generic

API update

implement node proxies: next phase of interop

cleanup common code

remove code no longer needed
fix format Output property

use xmlInitParser instead of xmlInitThreads
reentrant safe as well no need for xml_parser_inited

fix xml_parser_inited on win32
add common structs for better interoprability

updating license information in the headers.

implmentation of document ref counting for persistance
re-work of internal object handling

fix more memory overruns
initial definition for document ref counting
fixed property access to support all objects
clear property handler from invalid objects until ref count implemented

Missing header

Inital cut of new dom extension
PHP5 only