Terra 1 to 1

Hey everyone,

This is a quick fix regarding trees no longer generating.

We have redone the Trees algorithm to use a different dataset based on the same underlying data (so the location of the trees will be the same).

It is highly recommended to update to this version as trees no longer work on version 0.1.5 or lower.

There is also now command for inverting the water generation (There is water where it was land and vice versa): /terra invwtr or /terra invertwater This should be used in tandem with //regen in WorldEdit. This is to combat a bug where water is inverted in certain areas.