Allow users to be able to track the actions of admins.

[MavropaliasG]

When a group decides to use epitome as their decision making system, they will have to be able to ensure the administrator is not abusing their power.

For that reason a seperate section must be created in epitome that will display

1. Who has admin rights in epitome
2. The history of their actions (such as creation of accounts, changes in different accounts, posting items etc)
3. When was the server stopped/started (to track if the django server was put offline, could potentially provide better tracking)
4. Changes in the configuration of the platform (for example features such as Allow the option to have an admin approve members or disable registration #102 should be variables in a config files, and not only their values should be displayed at a page somewhere in epitome so everyone can see them, but changes in those variables should be kept in a history so that any user can track changes done)

The following can help in implementing this feature
https://stackoverflow.com/questions/22364067/can-i-display-last-actions-of-everyone-in-the-django-admin-index

and also this package https://github.com/justquick/django-activity-stream
and https://github.com/django-notifications/django-notifications

or https://github.com/GetStream/stream-django