Merge branch 'actions-tweaks' into 'next'

Actions tweaks

This just rewrites the action A_SetTargetsTarget currently, dunno if I'll bother to tweak any more actions in the near future \*shrugs\*

That said, PLEASE check whether the action works properly before accepting the merge. It's been a while since I last did anything with this branch, so I forget entirely whether I tested it or not.

See merge request !27