You can still achieve those same permissions with 7.5 as you could in 7.4, it's just handled a bit differently.
When editing the permissions for each forum you'll see the permissions such as Lock topics, can move topics, edit any post, etc.
So what you do is set the moderator permissions accordingly for that forum, and then assign the user to be a moderator of that forum. They'll only get the permissions for forums they are assigned as a moderator to. If they aren't specifically assigned to be a moderator of a certain forum, then they just get the standard permissions.
