emit xmpp events on lightsteam instance instead of router

to leave the router clean for xpath stanza events
get rid of lib/
its actually an example
add 'online','offline' and 'end' events to lightstream
update example to new api
use new node-xmpp module structure
note dependencies for backends
fix typo
fix this context
rm old code
add missing notes which xep vcard uses
add readme
bump version
Merge Bitdeli Badge

Conflicts:
	README.md