[DEV-1471] Modify middleware to only switch users for AskbotUsers on Askbot urls.
[DEV-1471] Remove mistaken negation.
[DEV-1471] Replace hard-coded url with askbot url from settings.
[DEV-1471] Add feature flag middleware.
[DEV-1471] Add check for staff user to feature flag middleware.
[DEV-1471] Add 'self' argument to process_request method of middleware.
[DEV-1471] Add check for askbot url to middleware.
Merge pull request #10 from roverdotcom/DEV-1471

Dev 1471 - Get Askbot ready for production.