Swithed to new chunk generation method.
Swithed to new chunk generation method.

It may happen some 'holes' are left when creating chunks using this method.
Reselecting and recreating them seem to work.

Old code preserved.

Khroki/MCEdit-Unified,Khroki/MCEdit-Unified,fhfuih/MCEdit-Unified,Khroki/MCEdit-Unified,fhfuih/MCEdit-Unified,fhfuih/MCEdit-Unified