More refactor, add 'debug'
More refactor, add 'debug'

node-xmpp/node-expat,noahjs/node-expat,node-xmpp/node-expat,julianduque/node-expat,noahjs/node-expat,Moharu/node-expat,julianduque/node-expat,Moharu/node-expat,node-xmpp/node-expat,Moharu/node-expat,noahjs/node-expat,julianduque/node-expat