Test with stuff + Forestry potential support

BM_src/forestry/api/world/ITreeGenData.java

@@ -0,0 +1,18 @@
+package forestry.api.world;
+
+import net.minecraft.world.World;
+
+public interface ITreeGenData {
+
+	int getGirth(World world, int x, int y, int z);
+
+	float getHeightModifier();
+
+	boolean canGrow(World world, int x, int y, int z, int expectedGirth, int expectedHeight);
+
+	void setLeaves(World world, String owner, int x, int y, int z);
+
+	boolean allowsFruitBlocks();
+
+	boolean trySpawnFruitBlock(World world, int x, int y, int z);
+}

BM_src/forestry/api/world/IWorldGenInterface.java

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+package forestry.api.world;
+
+import net.minecraft.world.gen.feature.WorldGenerator;
+
+public interface IWorldGenInterface {
+
+	/**
+	 * Retrieves generators for trees identified by a given string.
+	 * 
+	 * Returned generator classes take an {@link ITreeGenData} in the constructor.
+	 * 
+	 * @param ident
+	 *            Unique identifier for tree type. Forestry's convention is 'treeSpecies', i.e. 'treeBaobab', 'treeSequoia'.
+	 * @return All generators matching the given ident.
+	 */
+	Class<? extends WorldGenerator>[] getTreeGenerators(String ident);
+}

BM_src/forestry/api/world/WorldGenManager.java

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+package forestry.api.world;
+
+public class WorldGenManager {
+	public static IWorldGenInterface worldgenInterface;
+}

BM_src/forestry/api/world/package-info.java

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+@API(apiVersion="1.0", owner="ForestryAPI|core", provides="ForestryAPI|world")
+package forestry.api.world;
+import cpw.mods.fml.common.API;