Maketask cleanup

I have split engine_maketask() into smaller independant bits. I have also extended the documentation. That should make it easier for other people to add their own tasks in there.

@nnrw56 what do you think ?

Added 1 commit:

• 7344de07 - mkghosts ---> make_ghost_tasks

Looks like the diff tool does not really understand what is going on here...

Reassigned to @nnrw56

Added 1 commit:

• 79d052eb - Documentation

Reassigned to @pdraper

Ok, so this one should be straight-forward.

Added 64 commits:

• 79d052eb...7af3ec24 - 63 commits from branch master
• 885c1598 - Merge branch 'master' into maketask_cleanup

mentioned in commit b88e04a2

Status changed to merged