Swap to node-xmpp-* and use ltx rather than libxmljs
Remove require for libxmljs
Add .travis.yml
Upgrade mocha
Use developer-example config file in testing
Merge branch 'master' of github.com:buddycloud/buddycloud-http-api into node-xmpp-client

Conflicts:
	package.json
	src/account.js
	src/contact_matching.js
	src/content_feed.js
	src/util/atom.js
	src/util/pubsub.js
	src/util/pusher.js
	src/util/recent.js
	test/session.js
Remove node-xmpp
Load session
Merge pull request #151 from lloydwatkin/node-xmpp-client

Node xmpp client