Make sure there are no duplicate group links in the list, which could have been added by another thread.

Move to a floating point tasks_per_cell

See merge request !731

Improve task dep

See merge request !738

Apply the entropy floor in the cooling routine

See merge request !737

Clarify the possible temperature discrepancy between the entropy floor and the actual gas temperature in the RTD.

Use the correct minimal limit when computing the alternative du/dt derivative in the Lambda and Compton coolin models.