Note also needs --enable-compiler-warnings=yes and --disable-vec and isn't known to run!

Better naming convention for the cell_split variables in the YAML file. New variable for the splitting of gravity pairs.

Re-introduce the 'end_force' function as a task in order for the cooling function to be called at the right place in the time-step.

Removed the now obsolete checks that all correct tasks are active. Will need to be re-done correctly.

Separate the time-step information for hydro and gravity tasks into two different set of variables for each cell.

Open only once dependency file and add an option in debugging-checks mode for writing task dependency graph