Removed old authentication from js client
Rewrite of xhr code to use Request object
Added new authentication and session handling
Removed old auth code from server
Added new auth and session support to server
Moved Response object to __init__.py
use for gevent server when possible
Hack to allow EventSource work with sessions
General code tidying
updated .gitignore
Merge pull request #8 from fergalwalsh/Authentication-Rewrite

Authentication rewrite and general code refactoring