change http return code,

modify readme
file upload library
folder for storing user uploaded data
more global constants, socketio session

capture socket.io request cookie sessionid to retreive user session from redistore
/upload allows user to upload file
[beta] make chat window into file dropzone
Merge branch 'master' of https://github.com/workshop-guild/nodeapp into workshop-guild-master

Conflicts:
	README.md
	server.js
remove trailing spaces, added getsession and killsession for debugging
remove trailing whitespaces, working upload files
remove trailing whitespaces, display uploaded file in chatlog
traditional file upload form
Merge pull request #2 from elanfs/master

Upload File Feature