Synchronise task status with task progress

[snazare]

At the moment, there is no synchronisation between the progress field of a task and its status.

Needs:

A task is in the "To do" state, and progress is added on task (less than 100%) - the task has the status updated to "In progress".
A task is in the "To do" or "In progress" state, and progress is added on the task at 100% - the task has the status update to "Done".
A task has the status updated to "Done" - the task progress is updated to "100%".