Change --tasks and manual plugin to use task start instead of task prepare phase
Change --task to use a space as delimeter instead of comma
Make task.aborted be true even if it was silent
Update metainfo content_size to api v2 and json schema
Fix how cli execute command waits for shutdown
Remove bits of change_warn that didn't do anything
Fix plugins that modify the config after task start for reruns
Move some plugins using task prepare phase to start
Make a manager.config.pre-process event
Switch --cli-config to run on it