Access Organization via URL

[winsmith]

All URLs of all logged in pages should be prefixed with the organization slug. Example: Instead of logging in at e.g. ablator.space/login/ the login for your organization should live at ablator.space/your-organization-slug/login/

The reason for this is, it gives us a tiny sliver of added security, because a user has to not only know username and password, but also the organization slug to log in. But the main reason is scalability. This change allows us to shard databases by organization at a later point.

• Change the main URLConf at ablator/urls.py so that the api, management, logging and ^ urls are prefixed by a pattern like (?P<organization_slug>[^/]+)/
• Make sure that the project is not broken by clicking through the links
• create a new, empty index page and view and put it at the ^ root url. This will be an info page.