Starting redis integration code
Added code to handle chat messages. Now updating participants via pubsub
Code refactoring. Moving redis publish code to Model
Moving redis code to a separate file so that it can be shared by sockjs and django
Adding redis to requirements
Adding logging code to sockjs
Fixing broken Forestry Experiment due to redis intergation
Adding code to authenticate connect event using auth_token. Also fixing few bugs.
Merge branch 'redis-integration' of https://github.com/tgpatel/vcweb into tgpatel-redis-integration

Conflicts:
	vcweb/core/urls.py
	vcweb/core/views.py
	vcweb/experiment/bound/templates/bound/participate.html
Merge branch 'tgpatel-redis-integration' into develop