add default.xml file
Update XMLDocument class

- add method: mergeNodesByTagName
- add method: compareNode
add default controler
fix get default file over HTTP
update config with defaults files
Update sample application with defaults merges
Update readme news
Update XMLDocument

add attribut exists test in CSS selector
Update defaults controler

merge index pages (controlers only)
use cApplication::getDefaultFile as possible for over HTTP load
add defaults controler to default.xml
fix usage of push_xml_file
add comment
Update Ext application
remove unused module in

remove unused YUI module load
update template includes
update comment
Add YUI sample

fieldsform
Update YUI DataModel library