Tests for cron in Recurring
Begin cron implementation for mission
Add debug toolbar for query benchmarking
Restore login link
Use select_related and prefetch_related

Still WIP
Revert "Add debug toolbar for query benchmarking"

This reverts commit 098d132b87c720b3d57b1dd4724eee221daa56fd.

Conflicts:
	config/settings.py
Fix #117 by disabling auto escape in event templates
Display kingdom name
Update mission context
Add on update or timeout to mission

Cf #116
Migration for on_cancel_or_timeout
Remove nohup file
Display slug for pending event
Signals for on_cancel_or_timeout (cf. #116)
Rename to on_cancel, fix #116
Rename signal
Remove cancellable
Has value code
Added "accept_disabled" member to class MissionGrid to check if mission should
let cripples in
Removed a stupid mistake and added migration file