Rename old tasks file for now
We don't want to always create a CharacterConfig when creating a Character object, ugh
Modify thing.models.TaskState to only store keyID, no need to duplicate the whole key_info (wtf)
Delete thing.models.APICache, no longer required
Initial import of new task infrastructure - task_spawner internal task, APITask class and APIKeyInfo API task
Remove thing.models.APICache, actually commit earlier changes re:creating CharacterConfig/CharacterDetails
Temporarily disable some periodic tasks
Fix some stupid bugs with thing.tasks.APITask.init
Fix thing.tasks.APIKeyInfo making too many SQL queries
Add thing.tasks.ConquerableStationList periodic task
Fix up some bugs with TaskState handling in thing.tasks.APITask
Stupid Django making timezone aware Postgres fields
Add thing.tasks.RefTypes
Disable RefTypes retrieval in import.py, it will be retrieved once workers are started
Change periodic tasks to use the et_medium queue
Add thing.tasks.AccountStatus
Remove some unneeded imports
Add thing.tasks.CharacterInfo
Add thing.tasks.CharacterSheet
Modify thing.tasks.APITask to use on_failure/on_success methods instead of manually calling failed/completed