Add support for mineclone2,mineclonia and mineclone5

[JamesClarke7283]

Adds basic support for mineclone based games.

You might want to check to see if it works well for all trees, so far ive been running it on my server and noone has complained.

[HybridDog]

I think the tree definitions fit better to the mod which adds the trees. For example, my sumpf mod adds the birch tree if the treecapitator mod is installed.