I have the rails ready but the problem is that rail placement is still bugged; the corners do not auto align to the nearest track piece. We have to wait until that is fixed in a patch.
If you're talking about singleplayer, I recommend MCEdit. You can generate a completely flat land from scratch or open up a save and do some landscaping. Clone, replace, generate, delete.... it's all possible.
If Dustin were funny and original, it would be entertaining. This is just embarrassing men.
I actually have the feeling Dustin is actually a woman trying to make men look like ignorant, repetitive, insulting morons.
My new life goal: Read OP's post in one season. I might have to set up camp behind my PC and stack some supplies to make it through, but I think I can do it.
We dont need a new map. Anything that already exists stays as it is, anything else is generated with the new algorithm to include the new blocks and trees etc.
The water mob is a friendly squid. You get squid meat when you kill them. I'm not sure what to do with it since eating it (uncooked) doesn't work.