Merge pull request #19 from sdobz/master

Fixed bug where RedisStore publishers were shared
Fixed: user chat did not work with annonymous users
Merge branch 'master' of github.com:jrief/django-websocket-redis
Refactored templates to extend a base template
Updated docs
Reactivated heartbeat
Added groupchat view
check for pandoc in PATH
Only lists are allowed to specify users/groups/sessions for pubsub channels
Added more comments for setting directives
Only lists are allowed to specify users/groups/sessions for pubsub channels
Signal handler which populates session store with groups for logged in user
Signal handler which populates session store with groups for logged in user
Using more setting directives
Updated docs
Release candidate for 0.4.0
Moved import of signal handler to allow test build
wrap_users/groups/sessions now are private functions
Reusable JS code for the client
Better preparation of context to be used in templates