update metadata function WIP
Merge branch 'master' into jseip1679

Conflicts:
	client/peerSetup.js
merge resolution
folder cleanup
updated naming convention for startPeerConnection  aka initiatePeerConnection
changed 'initiatePeerConnection' to 'startPeerConnection'
Fixed response event listening, renamed req/resp properties.

Responses are now listened to using event uuid's,
not event buckets that are tied to connections,
due to my concern that connections may fail/be dropped. Events
use uuids now. Response object properties are renamed for consistency.
Updated demo
Merge branch 'master' of https://github.com/bchu/nodetron into brian

Conflicts:
	client/peerComm.js