Allow admins to remove sessions
Add listing of sessions to be cancelled
Use a different error message when an administrator ends a session
Show warning when no sessions are active
Merge branch 'master' into matthewwilkes-admin-force-logout

Conflicts:
	Products/NoDuplicateLogin/plugin.py
Merge branch 'master' into matthewwilkes-admin-force-logout
Add permission to expire sessions
Re-root the revoke session views onto the plugin
Do not show editable border on revoke session page
Tests for revoking sessions