At the risk of pandering to someone who doesn't want to hear it, I'll take a shot at some of these..
continuous intake cannot be disabled anymore (initial option don't work, the prisoners tab don't show open/close anymore)
Are you sure that you've checked the option on startup to disable it, because the last few prisons I've made once I disable the continuous intake, I can see Open/Closed and toggle them as I wish
guards do not react properly when a prisoner try to eascape and will not catch him
There is certainly a way to plan your prison to prevent this, have you ensure that the whole prison is secured - I build an entire perimeter fence to start off, so that I don't get any prisoners trying to escape straight away, I'm sure they will over time, but if they can see an unprotected (by a Staff or Jail door) exit to freedom, they will
try and take it!
often workers don't do orders because they "have no route" when the route is free
What sort of orders are you trying.. I've noticed a few times that you can't build a wall on the square directly adjacent to a fence for example, the job will say there is no route (I think), but usually the workers are pretty good.
especially for big prisons, often the staff stops at the door without let it close
Can you explain what you mean by this? Do they wait at the door while it's open, then it closes and they wait there until a guard opens it for them again?
laundry often does not work, prisoners stay at the middle of it and do nothing
I can't argue too much with this, Laundry isn't great, but try unassigning a few prisoners and see if that helps.. otherwise there are a few other posts on this forum that will have some tips to getting a Laundry to work better. Either way, I think it's something the devs are looking at for the next Alpha, so we'll just have to be patient!
execution room is not operative yet
Again, it's an alpha - it'll come in time, just give the devs a chance!
workshop has an issue, when a prisoner is working on a machine, the animation is done in the machine behind the workers instead of the one in front of him
Are you sure that's the correct case? I think the prisoners stand in front of the machine they're working on.. can you post a screenshot?
ironing board show that occupy 3 block of the floow but you can position it each 1 block
Haven't tried this so can't really comment, but if you pop it in the Mantis instance, I'm sure the devs will track it (unless they plan to change ironing boards altogether)
dead bodies can only be removed from the save file
I'm sure I read in some Alpha 11 notes that this will be changing in Alpha 11, I think I read there's a morgue van or something similar, so that's something that you'll be able to check when it's released.
I understand you're probably frustrated, but the game is in an Alpha phase.. when the Dev's can fix bugs, and it's worth them doing, they will, but they're trying to get new features implemented, as it seems a lot of people want to see new features. If they haven't fixed a bug, it may be the case that they intend to remove an item in a later Alpha (for example, if they don't fix bugs on the Ironing Board, they may be intending to remove it in Alpha 12).
I'm currently loving playing this game, easiest $30 I ever spent, and it can be frustrating when something doesn't work, but feel privileged that you get to have some input onto how this game is shaped. It's fun as the game is looking great anyway, you can check for bugs and help the devs make it the best game they can, and you get a chance to vote on features that you'd like to see.
Embrace the Alpha!