Bukkit

+ fixed failed reach checks in creative mode (creative mode has a longer reach by two blocks, I didn't respect that speciality at all necessary locations)
+ fixed minecarts and other vehicles making problems in relation to the playermove check

- I believe there is still a bug somewhere in there, so if you notice something that wasn't a problem in 2.15 but is now, please tell. I can't fix what I don't know.